Refrigerator side not cold, display control board temperature option not select able, only freezer side display light 6,7. when unplug power cord and wait for 15 second plug power cord back in then display control board work again sometime it stay on for 5 mins or some times it stay on longer. evaporator fan have continuity but not blowing. temperature sensor and heating element have continuity. i have replace a new display control board but that did not help. what else could it be. could you please help me diagnose step by step to pin point the main issue. thank you.
check continuity on evaporator fan, temperature sensor, heating element they all good. clean out condensor coil, change new display control board. evaporator fan not blowing could this the main control board in the back?
- Guest asked 7 years ago
Hello
See diagnostc service manual technician link below.There are many possibilities with you issue , I would start out on page #10 troubleshooting and work down the page to address every possible part until you get to the core of your issue. Go to page #22 for control panel diagnostics. Go to page #23 for main PCB daignostics. Matt Ace technician
Diagnosis Function for display panel
* Automatic diagnosis makes servicing the refrigerator easy.
* When a defect occurs, the buttons will not operate; but the tones. such as ding. will sound.
* When the defect CODE removes the sign, it returns to normal operation (RESET).
* The defect CODE shows on the Refrigerator and Freezer Display.
Test Mode main PCB see on page #23
TEST Mode
* The Test mode allows checking the PCB and the function of the product as well as finding out the defective part in case of an error.
* The test mode is operated by pressing two buttons at Display panel.
* While in the test mode, the function control button is not recognized, but the recognition tone (beep~) sounds.
* After exiting the test mode, be sure to reset by unplugging and then plugging in the appliance.
* If an error, such as a sensor failure, is detected while in the test mode, the test mode is cleared and the error code is
displayed.
* While an error code is displayed, the test mode will not be activated.
- AV Repair Help answered 7 years ago
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