NOTE: Most tests will need to be turned off before you will be allowed to move to the next test with the freezer temperature buttons. If you don’t hear anything in the freezer after a few minutes… “Huston we have a problem”. This video provides step-by-step repair instructions for replacing the main control board on a Frigidaire refrigerator. All the voltage readings I refer to are at the main board not the motor itself. These charts give general reference. I think it is a defrost control board, but I am not sure. After the software version is shown the freezer display should show “1” and the refrigerator display should be blank. When the motor is running (or should be) you will see 4-12 volts DC between pins 3 and 4 (for the evaporator fan) depending on the speed the motor is running. The circuit breaker is off for 30 seconds the control board. Unplug the refrigerator and remove the start relay and shake it. 4.2 out of 5 stars 4. Then hold down the door switch or switches, the display should go blank. How To Test the Temperature Control. Before starting the refrigerator, check that all the manual gas valves are in the ON position. In such appliances, any control for the refrigerator is simply a mechanical system of opening or closing vents between the refrigerator and freezer to let in more or less cold air. It is fairly common to have a large amount of frost build up and block airflow into the fresh food area if the freezer door did not get closed all the way for a few hours. To run a forced defrost cycle open the refrigerator door or doors if your refrigerator is a french door model. This effectively bypasses the optics for test purposes. The start relay is a small device mounted to … The refrigerator’s fresh food temperature can be adjusted in test “7” with the refrigerator (+) and(-) buttons, “5” is the suggested setting, “9” is coldest, and “1” is the warmest. (Check your non contact meter at a wall socket to make sure it’s working.) Important Notice: To start with we need to start the refrigerator’s diagnostic mode. If you get an open reading the bi-metal is defective. We repair a wide variety of control boards for refrigerators, ovens, washers, and dryers which resolve many common appliance issues plaguing consumers today. 72. When you have made your selection press the refrigerator (-) button to start the defrost cycle. I helps to know what is going on. You can select the test number you would like to run by pressing the freezer temperature (+) or (-) button until the test number you want is in the freezer display. On this step you can assure the water is turned on the refrigerator at the shut-off valve. (Refrigerator Defrost Troubleshooting Video), As a general rule any time the refrigerator compressor is running so should the condenser fan motor. 78. Now you can replace the filter of the refrigerator. Groups: Registered Joined: 2/21/2012(UTC) Posts: 3. The freezer sensor test gives a “P” pass, “O” open, or “S” short result. To enable all features please. It must have a square wave to run. NOTE: the refrigerator will not run with a code “00”. So it comes down to one question is the part that failed the test bad or is it your refrigerator’s control board? Well, if that the case, I have a kind of bad lock because both Control Board Cards has the same problem. The control board that provides voltage to the fan when it’s supposed to run; In most cases, your fridge’s condenser fan is designed to go bad long before its control board does. If I see something else in the service manual I will post again tonight. :) Thanks! “O” or “S” means the sensor is bad and needs to be replaced, a “P” is what you want. Generally your freezer section is highest priority. An “O” for “on” should be displayed and the refrigerator’s evaporator fan should come on. This board controls every part of the refrigerator’s functions. To confirm an electronic control board failure, you’ll need to turn on the compressor and evaporator fan in the diagnostic test mode. Congratulations! The part number for the kit that has both control boards is 4389102. If the ice maker is not working the ice level control board might be defective. Learn how to adjust your settings. The display will go back to it’s original settings and you can close the door. Then, press the "Express Freezing" and "Colder" choices at … There are two different tests you can do on the inverter board to see if it's good or not: 1. This is a nice one because you can do a forced defrost cycle as long as the refrigerator’s defrost thermostat, heater, and control are okay. With the refrigerator turned on ( or set to AES or AC mode on later models) and 120 volt available, test for input voltage at the board. This post may contain affiliate links, meaning when you click the links and make a purchase, we receive a commission. It also may decide to close the damper if it feels like the freezer is not cold enough. Next press the freezer temperature (-) button 3 times in 10 seconds and release the light switch. All the parts managed with control board W10503278 are AC120 Volts. M ost refrigerator-freezers have a control that adjusts the operation of the cooling system of the freezer only. NOTE: you will need to wait about 1 minute for the damper to move from the open and closed positions. I took a motor apart and it is a 6 pole induction motor. If you see an “O” (open) and the defrost thermostat is cold that means you need to replace the thermostat. 4.6 out of 5 stars 48. an “O” is displayed in the refrigerator temperature window for “on” and an “F” for “off” You need to actually see that the damper is moving from fully open to fully closed. 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