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Joined: 9/22/2017(UTC)
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I see these instruction over and over STEPS TO ENTER ELECTRONIC DEFROST CONTROL TEST MODE (IF APPLICABLE)
OPTION #1 (BI-METAL CLOSED)
STEPS
#1 - POWER OFF TO REFRIGERATOR FOR AT LEAST 30 SECONDS( turn control knob to Off)
#2 - THERMOSTAT OFF
#3 - POWER ON TO REFRIGERATOR (REPEAT STEPS 1 & 2 TWO MORE TIMES)turn the control knob to on and off
However I have only 2 knobs. 1 is power on and off/thermostat and the other just opens the vent from the freezer to the fridge. So my question is what is step #2 referring to when it says thermostat off but #1 & #3 say turn control knob on to off. Its 1 knob. How do you turn thermostat off AND cyle power on and off.
Is it just turn the knob slightly??
Thnx for any clarification on this.
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Rank: Advanced Member
Groups: Expert
Joined: 7/27/2010(UTC) Posts: 1,395  Location: near the middle of nowhere Was thanked: 24 time(s) in 24 post(s)
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Found this... The refrigerator/freezer defrost system can be checked by manually initiating a defrost cycle. There are two methods of initiating the ADC Test Mode. First Test Method: [LIST=1] Turn the thermostat off for 15 seconds.
Turn the thermostat on for 5 seconds.
Turn the thermostat off for 15 seconds.
Turn the thermostat on for 5 seconds.
Turn the thermostat off for 15 seconds.
Turn the thermostat on for 5 seconds.
Turn the thermostat off.[/LIST] In 3 to 8 seconds the ADC should turn on the defrost heater (with the bimetal closed). NOTE: The test mode will terminate when the bimetal opens. If the refrigerator/freezer is already in defrost, Test Mode can be terminated by unplugging the refrigerator/freezer from the wall outlet and waiting 30 seconds before plugging it back in. The refrigerator/freezer should immediately go into cooling mode if the thermostat is closed.
If this first test procedure fails to make the ADC initiate a defrost cycle, try the following procedure to make the ADC begin the Test Mode.
Second Test Method:
[LIST=1]
Disconnect the refrigerator/freezer from the wall outlet for at least 30 seconds.
Turn the thermostat off.[/LIST] Within 3 to 8 seconds the ADC should turn on the defrost heater (with the bimetal close). If the unit fails to go into the defrost mode during this test, the problem may not be with the ADC. A defective bimetal may be the cause of the failure. The ADC will only go into a test mode if the bimetal is closed. If the ADC senses an open bimetal it will return to the cooling mode within 3 to 8 seconds.
HELPFUL HINT: Upon entering the Test Mode, the relay mounted on the ADC board should turn off the compressor and turn on the defrost heater. Listen for the relay to click.
- If the relay clicks one time when entering the Test Mode, check for continuity in the defrost heater.
- If the relay clicks two times, check for an open bimetal.
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