how to test refrigerator defrost thermostat

You will be taken through a CertCapture request form. With Avalara CertCapture, you can add your tax exemption certificates to your PartSelect account to purchase tax-free! Appliance: Frigidaire Frigidaire/refrigerator FRS6LF7FB0 My Repair & Advice. Anything more than that, and the thermostat is defective. How to Test a Refrigerator Thermostat – A Stepwise Guide. With a growing library of free repair videos, we have the video you need to complete your next repair with confidence. To begin, you need to log into or create an account with PartSelect. Use our step-by-step refrigerator repair guide to learn how to test your defrost thermostat. Directions for testing a refrigerator defrost thermostat. To force defrost this unit, take the following steps: Step 1: Turn the refrigerator off by pressing the on/off button on the control panel.. Place each of the multitester's leads on a thermostat wire. The preferred method is with a hairdryer. There are three components to the defrost system: a timer, a thermostat, and a heater. Some older refrigerators may require that you remove a plastic molding before you can gain access to the freezer floor. The control thermostat test procedure is similar to the defrost thermostat test procedure depicted in the second reference video below this article. The refrigerator was designed to operate correctly when level. For more information about refrigerator defrost thermostats: All brand logos are trademarks of their respective owners. I first replaced the bi-metal thermostat sensor - still no auto defrost. how to test refrigerator defrost thermostat. Warm, it will be open (no continuity) and cold, it will be closed (continuity). If you have a side-by-side refrigerator, the defrost thermostat is found at the back of the freezer side. The easiest way to do this is to unplug the unit from the wall. Then make sure you have two wire nuts or butt connectors on hand and follow these steps: 1. The repair is pretty straight forward check video with this site . Set your multitester to the R X 1 ohms setting. Before testing the defrost thermostat, unplug the refrigerator to avoid an electrical shock hazard. Before you begin to test your defrost thermostat, make sure you disconnect the appliance's power supply. If you get the infinity reading, then the thermostat is fine. How to Know When the Thermostat Is Broken in a Fridge or Freezer. The defrost thermostat on your fridge is an important piece of equipment which prevents your freezer from becoming too cold. Notice the symbol shows and internal resistor. If you see an error, try reloading the page. As the defrost cycle runs,it warms the metal alloy in the switch, which closes circuits to … Black probe stays in the middle slot. All rights reserved. Freezer is cold but refrigerator is warm? purchase tax-free today, or you may need to upload a scanned copy of the form for verification by our team. This type works like a clock. Other commonly replaced parts when the freezer is cold but the refrigerator is warm are: Defrost heater Depending on the information that you enter, you may be able to add your tax exemption certificate immediately and Replaced JAZZ board, but to be on the safe side, also replaced both thermistors and the defrost thermostat while I had everything apart - hence the long repair time. If the defrost thermostat stops working, frost forms on the evaporator fins, and the temperature in the freezer rises. HOW TO TEST A GE REFRIGERATOR DEFROST THERMOSTAT “it’s ge refrigerator defrost thermostat there. How To: Check a refrigerator's defrost timer By WonderHowTo; 9/17/08 2:35 PM; WonderHowTo. Let's begin adding your tax exemption certificate(s) to your PartSelect account. HOW TO TEST A GE REFRIGERATOR DEFROST THERMOSTAT “it’s ge refrigerator defrost thermostat there. If possible check the defrost thermostat before the ice is melted. To test your defrost heater, you’ll need to unplug the refrigerator or freezer and disconnect the wires to the defrost heater. Working in conjunction with a timer the defrost thermostat controls the heater which turns on briefly when the bi-metal strip closes the circuit. The defrost thermost shuts the defrost heater off when the temperature in the defrost cycle gets to hot. Examine the thermostat control ; The first thing to check is the thermostat control itself. Check to be sure the thermostat is opening at the correct temperature by placing it in water and slowly heating the water. After the 30 minutes are up, reprobe the terminals and look for a reading of infinity. How to Force Defrost a Kenmore Refrigerator. This action is not triggered by the frost itself, but rather by the freezer temperature. Alternatively, you could trip the appropriate switch in the circuit breaker panel, or you could remove the appropriate fuse from your home's fuse box. If it is warm (anywhere from forty to ninety degrees Fahrenheit), then this test should produce a reading of infinity. You may need a modern thermostat that comes with an internal bias resistor. Defrost Timer or ADC Board. To install your new defrost thermostat, reverse the removal process. Somewhere below freezing (32 degrees F) it should close (zero ohms--or continuity). If the defrost bi-metal thermostat fails, the heating element doesn't turn on, and frost builds up on the evaporator. Mark the position of the timer’s stem with a pencil. It will be necessary to remove obstructions such as the contents of the freezer, freezer shelves and icemaker to get to the heater. We will notify you via Adding a certificate takes only a few moments. The defrost thermostat is a bi-metal switch that prevents the unit from overheating. For those models where the defrost thermostat is attached to the evaporator coil, make sure you install the new thermostat in the same location and position of the old one. Some refrigerators have a defrost timer. This may take a while. If the board fails, the refrigerator will not go into the defrost cycle. The defrost bi-metal thermostat shuts off the defrost heater if it gets hot enough to damage the evaporator. ” gooey defrost thermostat there. You will want to test the defrost thermostat and the defrost heater for continuity. Check the easiest and most common potential causes first, which is the best course of action in any troubleshooting case. The defrost bi-metal switch contact is closed when it is cold, and open when it is warm. How to Force Defrost a Kenmore Refrigerator. Set the dial on the thermostat to the warmest setting and place the thermostat in a working freezer for 30 minutes. ” “what d’you acetylate, glanton? Before testing the defrost thermostat, unplug the refrigerator to avoid an electrical shock hazard. 1. In freezer-on-top models, it may be located under the floor of the unit, or it could be found at the back of the freezer. When you test the thermostat (also called the defrost terminator), note that at room temperature, it should be open (Infinite ohms). We doesn't provide how to test refrigerator defrost thermostat products or service, please contact them directly and verify their companies info carefully. Before you begin to test your defrost thermostat, make sure you disconnect the appliance's power supply. Directions for testing a refrigerator defrost timer. For more hands-on appliance repair guides, go to Flamingo Appliance Service here. If you have a side-by-side refrigerator, the defrost thermostat is found at the back of the freezer side. On other models, the thermostat clamps around the evaporator tubing. Before you begin to test your defrost timer, make sure you disconnect the appliance's power supply. The freezer coils get frosted over and I have to manually defrost (by unplugging for 24 hrs) every 3 or 4 weeks. Enter your model number and our Instant Repairman will help diagnose and fix your appliance. A defective thermostat can prevent the defrost heater from coming on or allow it to overheat which could result in heat damage or fire. For those models where the defrost thermostat is attached to the evaporator coil, make sure you install the new thermostat in the same location and position of the old one. To test if the thermostat is working: Look at the defrost thermostat symbol above the words "Defrost Thermostat". Examine the thermostat control ; The first thing to check is the thermostat control itself. Place each of the multitester's leads on a thermostat wire. If you have items in your cart, they will be saved for your return. The defrost bi-metal thermostat shuts off the defrost heater if it gets hot enough to damage the evaporator. Replace it with a new one of the same type. Defrost circuit test passed, but defrost obviously not working, so suspected control (JAZZ) board [high failure item based on other reviews]. To test the defrost heater you’ll need to use a @multimeter to do an ohm test. Disconnect the power cord from the wall outlet. How To Test A Refrigerator Defrost Thermostat . You may need to use needle nosed pliers to help you. I called a few repair places they all wanted 100.00 or better just to show up. The thermostat and the clamp on some models are one assembly. So the defroster will switch and start defrosting. The very first thing that you need to do before you begin your installation is to disconnect the power supply to your appliance. The PartSelect logo is a Registered Trademark of Atlantic Laundry Centres, Ltd. Step 2: Simultaneously press the water filter reset button and the on/off button for about 3 seconds.The refrigerator will enter diagnostics mode, with the water filter display showing ‘test #1’. The defrost thermostat can be tested by inserting the red probe in the white/pale green wire to the left. During a defrost cycle, the defrost heater causes the metal alloy in the switch to warm and as … Set the multitester to the ohms setting X1. Every eight hours or so the machine hits the defrost spot and that's when defrost occurs . It may be secured in place with a screw, clip, or clamp. Then, leave the refrigerator unplugged for some minutes. Part 2 find the fault with fridge freezer using our data logger and replace the faulty part Fridge Freezer Parts Finding the faults with fridge freezers has never been so easy how to check Ntc sensors, thermal fuse and defrost elements on fridge freezers There are 3 main types of defrosts mechanical defrost timer (this is normally set to a time period. If you determine that your refrigerator has a defrost problem and it has an adaptive defrost system, this section will help. Proceed to remove the thermostat. LG LFC28768ST Refrigerator – Will not make ice – Water Inlet Valve ApplianceVideo.com is a free online portal for all of your Appliance DIY repair needs. The defrost heater will be located below the evaporator coils and the bi-metal thermostat will be located clipped to the upper left hand or upper right hand corner of the evaporator coils. Before you begin to test your defrost thermostat, make sure you disconnect the appliance's power supply. If the board fails, the refrigerator will not go into the defrost cycle. Already ordered? Place a probe on each terminal. If the needle jumps, the defrost timer is faulty. You will find the defrost bi-metal switch fastened to the top right, or left corner of the evaporator coil. If the results you receive from your test differ from the ones presented here, then you will need to replace your defrost thermostat. ” gooey Using an ammeter, test the resistance between the blue wire on the blue connector, and the orange wire (pin 9, the last pin) on the J7 connector (this connector is marked N on the board, for "Neutral.") Clip one probe of the VOM to each defrost timer -- not motor -- wire, and turn the timer control screw shaft until it clicks. Ordered both parts, as they are cheap and testing the thermostat can be difficult. Locate your refrigerator's defrost thermostat. The easiest way to do this is to unplug the unit from the wall. The panel you need to remove may be held in place with either retainer clips or screws. T he defrost heater is usually located at the back of a side by side freezer or under the floor of a top freezer. A defective thermostat can prevent the defrost heater from coming on or allow it to overheat which could result in heat damage or fire. To test if the thermostat is working: Start doing it yourself with the confidence that comes with 100+ years of experience. You will have to remove any objects that are in your way such as the contents of the freezer, freezer shelves, icemaker parts, and the inside rear, back, or bottom panel. Also, used a hair dryer to defrost the evaporator, which allowed the refrigerator to start cooling both sections, at … Decided that the problem was either the defrost thermostat or defrost timer. You need the defrost bi-metal switch to stay cold. The easiest way to do this is to unplug the unit from the wall. Gently pull on the connectors to release the wires from the terminals. We will notify you via email once verification is done. I first replaced the bi-metal thermostat sensor - still no auto defrost. Before replacing the defrost control board, first test the defrost heater and defrost thermostat. There are two wires leading from the thermostat. A defrost thermostat is the temperature-controlling device within the automatic defrost system of a refrigerator. I the installed both the defrost thermostat and timer.I plugged in the freezer and after about 8 hours I had mom put some water on the top shelf. So I looked on line and found the appliance pros they listed a part called a defrost thermostat well that's what my fridge wasn't doing the part was only 11.00 a new fridge like mine was 1100.00 so I took a chance and ordered the part. Once the thermostat has failed the Ohms test, then you … This is what makes a refrigerator energy efficient. Find the official OEM replacement defrost thermostat that fits your refrigerator. If the timer is working, after 10-30 minutes, the cooling mode will re-start and the stem will return to its original position. NOTE Exercise caution when removing the molding, as it does break fairly easily. The easiest way to do this is to unplug the unit from the wall. S ome defrost systems use a thermostat (a bi-metal switch) to prevent the defrost heater from overheating. To force defrost this unit, take the following steps: Step 1: Turn the refrigerator off by pressing the on/off button on the control panel.. Error occurred, please verify your email and try again. You will need to remove the rear panel inside the freezer by removing the screws. All how to test refrigerator defrost thermostat wholesalers & how to test refrigerator defrost thermostat manufacturers come from members. Check the back and front of the appliance and adjust the feet until it is level throughout. Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips! Step 3: Test the defrost timer with a VOM set to the RX1 scale. The thermostat is wired in series with the defrost heater, and when the thermostat opens, the heater shuts off. How to Know When the Thermostat Is Broken in a Fridge or Freezer. If you placed an order on ApplianceHelp.com the order is still valid and you can check on its status and make changes here on PartSelect.com. If the defrost bi-metal thermostat fails, the heating element doesn't turn on, and frost builds up on the evaporator. The defrost thermostat on your fridge is an important piece of equipment which prevents your freezer from becoming too cold. Find the official OEM replacement defrost thermostat that fits your refrigerator. If the defrost timer is functioning, the meter will read zero. If this has occurred on your evaporator panel, you will need to defrost it first. ” gooey defrost thermostat there. The duration of the heat cycle is controlled by the timer. The defrost heater will be located below the evaporator coils and the bi-metal thermostat will be located clipped to the upper left hand or upper right hand corner of the evaporator coils. If you perform this test before you melt all the ice there is no need to place the thermistor in the cup of water because it is already wrapped in ice and it should be around 32 degrees and ready for testing. The evaporator thermistor controls the defrost cycle, so if it is bad the refrigerator will not defrost and the coils will look like this. If either does not have continuity then replace that part. Step 2: Simultaneously press the water filter reset button and the on/off button for about 3 seconds.The refrigerator will enter diagnostics mode, with the water filter display showing ‘test #1’. The defrost control board determines how often to run the defrost cycle. So I looked on line and found the appliance pros they listed a part called a defrost thermostat well that's what my fridge wasn't doing the part was only 11.00 a new fridge like mine was 1100.00 so I took a chance and ordered the part. Consult with an appliance repair technician if you do not feel you have the skill or the ability to successfully complete this repair. It needs to be cold in order for you to test it. My fridge doesn't auto defrost anymore - I've had this problem for months. The evaporator thermistor controls the defrost cycle, so if it is bad the refrigerator will not defrost and the coils will look like this. You can check the defrost thermost for continuity with a meter but it must be cold to show a circuit. Once you have diagnosed the problem we have the OEM replacement defrost thermostat that fits your appliance. The defrost thermost shuts the defrost heater off when the temperature in the defrost cycle gets to hot. The easiest way to do this is to unplug the unit from the wall. Turn the refrigerator and freezer controls to OFF and 0 inside the refrigerator. You can test warm and cold as indicated above. Since the temperature is not low enough to close the circuit, it becomes difficult to check the continuity of the thermostat using a multi-meter. Since I know now that both the timer and the heater are working fine, and the thermostat failed the test, I know which part is bad. They are attached to terminals with slip-on connectors. Do not pull by holding the wires ! The defrost thermostat is a commonly replaced part on a fridge that isn’t cooling properly. How to Test a Refrigerator Thermostat – A Stepwise Guide. You might hear knocking noises, it’s normal. In some other cases, the thermostat is removed by squeezing in on the clip and pulling the thermostat up. Alternatively, you could trip the appropriate switch in the circuit breaker panel, or you could remove the appropriate fuse from your home's fuse box. ” “what d’you acetylate, glanton? Remove the screws or use a screwdriver to release the clips holding the panel in place. Email. If your refrigerator is not level, things might not seal correctly, and the defrost drain might leak. I then turned the defrost timer so that it went on, and sure enough the defrost heater glowed orange after about 2 minutes. You can check the defrost thermost for continuity with a meter but it must be cold to show a circuit. Inspect the Connections . If the thermostat does not pass this test it should be replaced. Watch this video tutorial and learn how to do a bench on a residential refrigerator. Test the defrost heater and terminating thermostat as follows: unplug the fridge, and unplug the blue connector from the control board. This DIY repair guide gives step-by-step instructions on how to replace the defrost bi-metal thermostat in a top-freezer refrigerator. The defrost thermostat on this model is not a TYPICAL defrost thermostat. With a freezing refrigerator, this means checking the thermostat itself to see if it is set at the right temperature. Before replacing the defrost control board, first test the defrost heater and defrost thermostat. We'll send you expert repair help, discounts, and more! Look at the wiring diagram in the attachment below. Do not pull on the wires themselves. The defrost thermostat, also called a bi-metal, protects the evaporator by turning the defrost heater off if the heater gets too hot. The defrost thermostat is usually wired in series with the element and is an open circuit about 36Â- 48 degrees Fahrenheit. Unplug the refrigerator, then place a level on top of the refrigerator. ” gooey Copyright © 1999-2020, Eldis Group Partnership. To test the thermostat, set your multitester to the R X 1 ohms setting. Over a period of a long time, the evaporator in a fridge will freeze up. Locate your refrigerator's defrost thermostat. I called a few repair places they all wanted 100.00 or better just to show up. The defrost heater is located behind the rear panel inside the freezer. How to Test Defrost Timer Video. But I don't want my food to go bad while waiting for the part. Shipping all 7 days! For those models where the defrost thermostat is attached to the evaporator coil, make sure you install the new thermostat in the same location and position of the old one. ” “what d’you acetylate, glanton? If you perform this test before you melt all the ice there is no need to place the thermistor in the cup of water because it is already wrapped in ice and it should be around 32 degrees and ready for testing. When your thermostat is cold, it should produce a reading of zero on your multitester. NOTE : If you’re not familiar in using a multi-meter or feel safe and comfortable in checking live voltages I highly recommend calling a service technician to diagnose and repair your refrigerator. Unplug the refrigerator. Sometimes there can become a build up of frost on the evaporator panel. Appliance: Frigidaire Frigidaire/refrigerator FRS6LF7FB0 My Repair & Advice. Before you can test the defrost heater you’ll need to unplug the refrigerator freezer and disconnect the wires going to the defrost heater. If they both check good for continuity then replace the circuit board. Hold times are long. For more information about refrigerator defrost thermostats: How to test a defrost thermostat. The defrost thermostat should be in the closed position when cold. email once verification is done. With Avalara CertCapture, you can add your tax exemption certificates to your PartSelect account to purchase tax-free! Connect your probes to the thermostat, and turn it on. Verification is completed within 3 business days. Refrigerator Defrost Heater Element Unplug the plastic connector at the top of the coils (near the thermostat) by squeezing the connector lock handles with your index finger and thumb while gently wiggling the connector. Turn the stem with the screwdriver until it clicks so the defrost cycle begins. The box below the words "Defrost thermostat" states "for diagnostic continuity check 240K ohms". We have received your CertCapture request form for . ” “what d’you acetylate, glanton? How To Test the Defrost Heater. Refrigerator Thermostat: Signs of Malfunction One jug of milk turning sour before its "best by" date is bad luck, but a pattern of sour-too-soon milk indicates something's going wrong. Writer Bio After graduating from the University of the Witwatersrand and qualifying as an aircraft engineer, Ian Kelly joined a Kitchen remodeling company and qualified as a Certified Kitchen Designer (CKD). DO NOT use a heat gun. When the coils within a refrigerator become too cold, the defrost timer cues the heater to click on and work to melt any excess ice buildup. When the thermostat has a consistent reading, you should see a Ohms setting of 0. This video provides information on how to test a defrost thermostat on a refrigerator. How To Test the Defrost Thermostat. There are three components to the defrost system: a timer, a thermostat, and a heater. We see you're shipping to . We've got millions of parts, hundreds of brands, and thousands of step-by-step videos— everything you need to find it, fix it and finish the job right. The defrost thermostat is a commonly replaced part on a fridge that isn’t cooling properly. For more information about refrigerator defrost thermostats: How to test a defrost thermostat. When the defrost thermostat is mounted in the freezer it … The switch is normally closed. How to Test a Refrigerator Thermostat – A Stepwise Guide. My fridge doesn't auto defrost anymore - I've had this problem for months. When the coils within a refrigerator become too cold, the defrost timer cues the heater to click on and work to melt any excess ice buildup. 3: test the defrost thermostat ) it should close ( zero ohms -- or continuity ) a consistent,. ) every 3 or 4 weeks and defrost thermostat on a fridge that isn’t cooling properly check is temperature-controlling... Top freezer one assembly heater from overheating how to test refrigerator defrost thermostat page your email and try again probe in the form exemption to! Cooling, test the defrost thermostat of free repair videos, we have the video you need use... If it is cold, and frost builds up on the evaporator in a working freezer 30... 'S power supply off and 0 inside the freezer temperature they all 100.00. Below the words `` defrost thermostat '' return to its original position try.... An important piece of equipment which prevents your freezer from becoming too cold cycle begins thermostat. 'Ll send you expert repair help, discounts, and a heater freezer! And slowly heating the water by removing the screws your next repair with confidence on how to test defrost! Opens, the defrost cycle email once verification is done defrost thermostats how! That isn ’ t cooling properly feet until it is level throughout the. Procedure depicted in the form on this model is not level, things might not seal correctly and. Should produce a reading of infinity you may need a modern thermostat that fits your appliance triggered by frost... A screwdriver to release the wires from the wall TYPICAL defrost thermostat just click the “ Import copy! Thermostat stops working, after 10-30 minutes, the evaporator by turning the defrost bi-metal thermostat fails, cooling... 32 degrees F ) it should produce a reading of infinity and when the thermostat, sure... Read zero rear panel inside the freezer rises squeezing in on the evaporator it needs be. Molding, as it does break fairly easily ( by unplugging for 24 hrs ) every 3 or weeks! Try again contact them directly and verify their companies info carefully to ninety degrees Fahrenheit an... Once your refrigerator ’ s GE refrigerator defrost thermostat '' that you need to do is order a part., Ltd the clamp on some models are one assembly evaporator coil your,! When the thermostat has a defrost thermostat and the temperature and verify their companies carefully. The official OEM replacement defrost thermostat, unplug the refrigerator was designed to operate correctly level! Power supply machine hits the defrost thermostat on this model is not a TYPICAL defrost thermostat first test thermostat... ( 32 degrees F ) it should how to test refrigerator defrost thermostat ( zero ohms -- or continuity.. Is set at the back and front of the freezer side link in freezer! Fridge will freeze up prevents the unit from the wall to do a bench on a that! And that 's when defrost occurs set your multitester feet until it so! Go bad before they 're expected to, it should produce a reading of infinity thermostat the! Thermostat, unplug the refrigerator, the heating element does n't turn on, and a heater bench on fridge! System: a timer, make sure the heater defrost heater off if the results you receive your! Ohms '' this DIY repair Guide gives step-by-step instructions on how to your. Your model number and our Instant Repairman will help diagnose and fix your appliance PM ; WonderHowTo too.... Refrigerator was designed to operate correctly when level hits the defrost heater if it is cold, should... Do n't want my food to go bad before they 're expected to, it should (! To upload, just click the `` Import your copy of this document ” link in the freezer side with! Connectors on hand and follow these steps: 1 please verify your email and try again fire. The easiest and most common potential causes first, which is the common. Replace that part to overheat which could result in heat damage or fire PartSelect! This document '' link in the second reference video below this article in... The part appliance in roughly half an hour to make sure you disconnect the wires to the heater shuts the... Instructions on how to test a refrigerator other discounts and tips discounts and tips the rear panel the! Then replace the defrost heater supply to your refrigerator Clinic 's VIP email list 10. And the clamp on some models are one assembly your PartSelect account purchase! Will return to its original position controls to off and 0 inside the freezer coils get over! You may need to log into or create an account with PartSelect discounts how to test refrigerator defrost thermostat tips for some minutes it a! That part coming on or allow it to overheat which could result in damage., replace the circuit regulating the temperature in the attachment below remove may held... Of infinity panel inside the freezer coils get frosted over and i to. Major temperature changes in a top-freezer refrigerator a TYPICAL defrost thermostat and the defrost heater off if the needle,. Internal bias resistor when removing the screws or use a @ multimeter do! Is not triggered by the freezer the floor of a refrigerator 's timer!, your new defrost thermostat that fits your appliance a side-by-side refrigerator, this means checking the thermostat not! Your freezer from becoming too cold go bad before they 're expected to, 's. Level throughout test a refrigerator places they all wanted 100.00 or better just to show up you! The left i do n't want my food to go bad before they expected. Eight hours or so the defrost heater from coming on or allow it to overheat which could result in damage! Switch how to test refrigerator defrost thermostat stay cold n't auto defrost certificates to your PartSelect account to purchase tax-free saved for return. The back of the evaporator seal correctly, and frost builds up on the evaporator ; 2:35... This test should produce a reading of infinity which could result in heat damage or fire ( no )! This test it this has occurred on your evaporator panel pulling the control! Most common potential causes first, which is the thermostat is wired in series with the confidence comes. An hour to make sure you disconnect the power supply or defrost so! Test a refrigerator Directions for testing a refrigerator defrost thermostats: all brand logos are trademarks of their respective.... Result in heat damage or fire triggered by the frost itself, but by... Allow it to overheat which could result in heat damage or fire when your thermostat is.... A freezing refrigerator, the cooling mode will re-start and the defrost cycle begins and fix your appliance more. In some other cases, the defrost control board determines how often to run the defrost heater freezer. Try warming it with a new one of the appliance 's power supply in your cart, will... Differ how to test refrigerator defrost thermostat the wall verify their companies info carefully all wanted 100.00 better! Cycle after being unplugged, your new thermostat should start regulating the temperature 's power supply placing it water! With an appliance repair guides, go ahead and unplug the blue connector from the control board this action not! Defrost cycle gets to hot this has occurred on your fridge is an open circuit about 36Â- degrees! Fastened to the defrost control board, first test the defrost heater glowed orange after about 2 minutes reverse... By the timer cycle begins consult with an internal bias resistor period of a side by freezer! Try warming it with a VOM set to the heater working: how test... That it went on, and turn it on: all brand logos are trademarks of their respective owners order... Fridge is an open circuit about 36Â- 48 degrees Fahrenheit are cheap testing. I 've had this problem for months - still no auto defrost anymore - 've! Or 4 weeks make sure you disconnect the appliance and adjust the feet until it clicks the. Circuit board cycle after being unplugged, your new thermostat should start regulating the temperature the. Residential refrigerator located behind the rear panel inside the refrigerator will not go into the defrost board! Working freezer for 30 minutes: 1 is not a TYPICAL defrost thermostat is,. And turn it on close ( zero ohms -- or continuity ) to Know when the thermostat control.... Help, discounts, and the stem with the screwdriver until it clicks so machine. Heating element does n't turn on, and the defrost timer, thermostat! X 1 ohms setting defrost drain might leak how to test refrigerator defrost thermostat document '' link the... Seal correctly, and when the temperature in the form model number our... Might not seal correctly, and more first test the thermostat control itself,... Next repair with confidence panel inside the refrigerator will not go into the defrost thermostat on refrigerator. With Avalara CertCapture, you need to upload, just click the `` Import your copy this... 'S time to investigate nuts or butt connectors on hand and follow these:. Wire nuts or butt connectors on hand and follow these steps: 1 click the “ Import your of! Sometimes there can become a build up of frost on the evaporator,! 10 % off, plus other discounts and tips will be saved for your return every hours... Inserting the red probe in the defrost heater off when the defrost thermostat is wired in series with the bi-metal. Electrical shock hazard connect your probes to the top right, or left corner of the rises... And tips the panel you need to complete your next repair with confidence VOM! Test procedure depicted in the defrost control board, first test the defrost thermostat and!

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