Error Code COMP IPM FAULT
The compressor inverter power module has detected a fault and shut down
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: LED blinks
What This Means
IPM internal fault; Overcurrent condition; IPM voltage too low (under 13.5V); Solder defect on inverter PCB
What actually causes this:
Low DC 15V supply to the IPM is the most frequent cause, often from a failing SMPS board or poor solder joint.
First Thing to Check
Check that DC 12V and 5V outputs from the SMPS board are within normal range — if SMPS output is low, the IPM will fault.
Parts Involved
How to Fix
- 1
Check DC 15V supply at ZD501
- 2
Check for shorts on IPM pins
- 3
Check soldering on inverter PCB
- 4
Check compressor winding resistance and cycle
Other Error Codes for RF27T5501SR
Refrigerator compartment temperature sensor failed or disconnected
Freezer temperature sensor has failed or disconnected
Freezer fan motor is not spinning or not sending a rotation signal
Freezer defrost heater is not working — ice may build up on evaporator
Condenser fan in the machine compartment is not spinning