AC Compressor
refrigeration
Description
The compressor VAC reading does not match the ordered compressor state, and the unit gives an alarm only.
Activation Conditions
VAC reading from compressor does not match ordered compressor state. A05100 or A5102 not active or pending
Unit Behavior
Alarm Only
Reset Conditions
VAC reading from compressor matches ordered state
Corrective Actions
1. Inspect compressor. a. Check terminal connections at the compressor. 2. Check compressor status in the System Values menu in CabinTech. a. If the compressor shows OFF check for voltage between J4-1 and J4-2. If voltage is present, go to step 3. If voltage is not present, go to step 4. b. If the compressor shows ON go to step 4. 3. Check high voltage harness. a. Check for voltage between P4-1 and P4-2. If voltage is present, inspect the high voltage harness for short to power. b. If voltage is not present go to step 4. 4. Replace the CCM board. a. Refer to section 8.34 for CCM board replacement instructions.