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The heater I couldn’t locate should be on page #4 fresh food section coils. Do you guys know how the fresh food section defrosts? Maybe the heater is inside the evap coils?
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Hello There is not a heater for the FF section evaporator. The refrigerator maintains 38-44 degrees. When the control board cycles off at 3-44 degrees , the evaporator defrosts manually on temperatures alone. No need for a heater if coil temperature is above 32 degrees.
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So the unit probably needs a new control board if the fresh food section coils are all iced and not defrosting for several days now?
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Did you run it through diagnostics ? Is there any error codes ? If no error codes I would replace board and Fresh Food thermistor
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I didn’t know how to how to get this module into diagnostic. Would instructions be on the back? I didn’t see a kick plate manual. By board you mean control board not power board right?
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The complete diagnostics are above in the link . To Enter Service Diagnostics Mode: Refrigerator must not be in lockout mode prior to entering Service Diagnostic mode. 1.Press SW1 and SW2 simultaneously for 3 seconds. 2.Release both buttons when you hear the CHIME indicator. The display will show “01” to indicate the control is in Step 1 of the diagnostics routine.To Exit Service Diagnostics Mode, Choose One of the Following Options:■Press SW1 and SW2 simultaneously for 3 seconds.OR■Unplug refrigerator or disconnect power.OR■Allow 20 minutes to pass.Following the exit of the diagnostic mode, the controls will then resume normal operation.NOTES:■Cooling diagnostics are Service tests 1 through 7 and 32 through 39. ■Dispensing diagnostics are Service tests 8 through 31.■Each test must be manually advanced. ■Press SW5 to move to the next step in the sequence. ■Press SW4 to back up in the sequence to the previous step. ■Diagnostics will begin at Service Test 1. ■Each test is displayed in the 2 digits of the dispenser user interface display. ■The test results are displayed in the 2 digits on the dispenser user interface and display 2 seconds after the test number is displayed.An amber “Order Filter” light will be shown to designate that the test number is being displayed, and a red “Replace Filter” light will be shown to designate that the status of the test is being displayed. ■All button and pad inputs shall be ignored and all inputs shall be off except as described in the actions for each test.Service Test – 1: FC Thermistor■The board will check the resistance value of the ther. Service Test – 2: RC Thermistor■The board will check the resistance value of the thermistor and display the results on the Temp display (01 = pass, 02 = open, 03 = short).Service Test – 3: Evaporator Fan and Air Baffle Motors■Control the RC and FC evaporator fan motors by depressing SW3 (01= both fan motors off. 02 = FC fan on).■Depress SW3 once to advance. Service Test 3 will flash quickly and advance to tests 13/23 very quickly. The result is RC fan on, pantry air damper on. Pantry air damper will open and close automatically (13 = damper open, 23 = damper closed). Verify airflow inside pantry on left-hand side when damper is open (13 displayed). Airflow in pantry will cease when “23” is displayed.■Depress SW3 to advance to last step (04 = both RC and FC fans on).Service Test – 4: Compressor/Condenser Fan Motor/Evaporator Fan■There will be a delay of 3 seconds before start of Sub Step 01. NOTE: Each test is timed and will automatically proceed to the next step. User will not be allowed to exit test. If exit is attempted, an invalid chime will sound.■Control the sealed system loads by selecting
