Whirlpool Refrigerator PC Error: Compressor circuit error
What Is the Whirlpool Refrigerator PC Error Code? The PC error code signals a compressor circuit fault detected by the main control board on Whirlpool French Door (WRF535SWHZ, WRF757SDHZ) and Side-by-Side (WRS325SDHZ) refrigerators. The board monitors current draw and run-cycle feedback from the compressor; when readings fall outside acceptable parameters, PC is logged and displayed. […]
Some Steps
DIY Fixable
from $250
Typical Repair Cost
1-2 hours
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Without the compressor operating, the refrigerator cannot cool. Move all perishable food immediately and schedule service.
Can I reset the code?
Yes. A start relay replacement or a 30-minute rest cycle may allow the compressor to restart. A failed compressor or inverter board cannot be reset and must be replaced.
When to stop immediately?
Stop if you notice: Both compartments are warming and the compressor is not running — move food immediately., You smell burning or notice scorch marks near the compressor or inverter board..
Symptoms You May Notice
Unit cycling on and off frequently
The refrigerator starts and stops repeatedly in short intervals rather than running in normal long cooling cycles.
Interior lights flickering
The lights inside the refrigerator dim or flicker, suggesting unstable power delivery from the control board.
Temperature swings noticeably
The compartment temperature rises and falls by several degrees between short compressor cycles instead of holding steady.
Compressor short-cycling audible
A click-start, brief run, then click-stop pattern repeats every few minutes, which is the audible sign of short-cycling.
Possible Causes
Failed compressor start relay
The start relay provides the initial current boost the compressor needs to start. When it fails (often rattles when shaken), the compressor cannot start and trips its thermal overload.
DIY PossibleFailed inverter board (inverter-compressor models)
On WRX and newer WRF models with variable-speed compressors, the inverter board controls compressor speed. A failed inverter board prevents the compressor from running.
Requires ProfessionalFailed compressor
The compressor motor windings have failed, and the compressor cannot run regardless of start relay or inverter board condition.
Requires ProfessionalSafe Checks You Can Do
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1
Shake and inspect the start relay
Unplug the refrigerator and pull the unit away from the wall. Locate the compressor (black cylinder at the lower rear). The start relay is the small component plugged into the side of the compressor. Unplug it and shake it — a rattle indicates a failed relay.
A replacement start relay for most WRS and WRF models costs from $15 at appliance parts suppliers and is a user-replaceable part.
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2
Allow the compressor to cool before restarting
If the compressor has been attempting to start repeatedly, leave the unit unplugged for at least 30 minutes to allow the thermal overload protector to reset before powering back on.
Do not plug and unplug rapidly — this stresses the compressor and other electrical components.
When to Call a Professional
Contact a qualified technician if:
- Compressor windings measure an open or shorted circuit on a multimeter — compressor has failed.
- Inverter board output voltage is absent or incorrect when tested by a technician with a service meter.
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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