Also unplug the white plug on the right side of the the blue plug. There are several reasons for GE refrigerator problems not cooling. Pre-Chill: When the main control board determines that the defrost cycle is necessary, the main control board will force the refrigerator into a continuous cool mode (this is Pre-Chill). note: if option #2 does not work, try option #1 before replacing control. Using your ohm/volt meter put the red lead in the center plug of the blue connector then put your black lead on the farthest left pin of the white plug it will be the pin with the orange wire and that circuit should have continuity. defrost heater will turn on for 21 minutes or until bi-metal opens. When the control board determines its time to defrost the evaporator it will send voltage to the defrost heater which heats up to melt the built up ice off the evaporator, the water from the melting ice then goes down the defrost drain to the defrost pan at the back of the refrigerator where it will sit and be evaporated by the heat from the compressor. If the circuit is open then either the defrost heater or the defrost bi-metal thermostat is bad. When you have frost build up in your freezer section, there is only one cause – your defrost is not working as it should be. 4.25"L x 2.5"W. Defrost module. Find great deals for KENMORE REFRIGERATOR DEFROST CONTROL BOARD PART# 5303918476. However, if it has gone faulty, it will prevent the defrost heater from turning on, which completely stops the process. Step 2: Once you have the control board cover removed look at the bottom of the board and remove the blue plug connected to the three big pins, sometimes they are pretty tough to get off, but do not go prying on it. Access the defrost control by removing the screws that hold the control panel to the roof of your refrigerator. Insert your black lead into the 5th wire on the white connector and your red lead into the 4th wire as shown in the image below and you should get in the range of 15k - 2ok ohms, if not the evaporator thermistor is bad. WR09X28646 REFRIGERATOR DEFROST CONTROL BOARD. Now that you know the location of the board you will also need to know the GE refrigerator main board pin layout. If any of these problems occur, you should check the defrost thermostat first, in order to rule this in or out as the cause of the problem. Genuine product manufactured by Frigidaire. This control board oversees several internal conditions and regulates the activation of the defrost cycle. In any frost free refrigerator there is a defrost system which controls the cooling and defrost cycle. Samsung refrigerator troubleshooting guide for models RFG29PHDBP, RFG29PHDPN, RFG29PHDRS, RFG29PHDWP. • Verify that control board is not in compressor start delay mode. … The defrost thermostat keeps track of the temperature of the evaporator coils in your freezer. Samsung Refrigerator Troubleshooting Guide. This can help you narrow down the problem. As the heater assembly is a major part of your refrigerator, it can also be a pretty involved repair. This Samsung refrigerator troubleshooting guide contains electrical schematics and instructions for setting the fridge in different modes via the control display/panel. Damaged defrost control board; You can look into the defrost control board after you’ve tested the defrost heater and timer, and they’re both okay. Step 1: Unplug the refrigerator! Copyright 2017 Techanswerslive.com. If the heater checks out to be good, then you need to check the defrost-bi metal for continuity, keep in mind the defrost bi-metal will need to be cold before checking it, so if its not cold drop it in a glass of ice water for a few minutes and then test it. Specifications: Approx. Thanks. However, the defrost is made up of several parts, and if only one of which is not functioning properly, it can make the whole cycle non-functional. Check or test each of the possible causes. Defrost Bi-Metal Thermostat : The defrost bi-metal thermostat also clips to the top of the evaporator and is a safety feature so that the defrost heater can not come on if the temperature is not cold enough in the freezer. If the control fails, your refrigerator can’t defrost automatically. Below you can find the solutions for Maytag refrigerator ice maker problems french door, Maytag refrigerator control board problem, ice maker, water dispenser problems, etc. The thermistor — also called the defrost temperature sensor — senses evaporator temperature and sends signals to the electronic control board. – Defective heater defrost. Over time, the buildup of ice on the evaporator coil will prevent the refrigerator and freezer from … However, if the defrost in your refrigerator is no longer functioning properly, frost could be a very real problem in your future until you fix what is broken. – The refrigerator door is not fully closed or the door gasket is damaged. Troubleshooting Non-Functional Defrost When you have frost build up in your freezer section, there is only one cause – your defrost is not working as it should be. • Voltage to main control board is missing, replace the main control board. Set your ohm/volt meter to 20k ohms. This should display an "S" in the freezer display and an "E" in the refrigerator display. Before replacing the defrost control board, first test the defrost heater and defrost thermostat. Not only is this the least likely part to fail, but it is also the most difficult to replace, and many appliance owners may feel more comfortable leaving it to a professional. Via Appliance Repair Remove the two screws that hold the defrost control board in place. However, some parts of the defrost are more likely to be at fault than others, so here is where to start your investigation. NOTE: The manufacturer does NOT take these items back in used condition, please be sure this part will fix your problem. Evaporator Thermistor : The evaporator thermistor is clipped to the top of the evaporator and the main control board monitors the resistances that are sent from the thermistor to determine the temperature of the evaporator. 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