Whirlpool Refrigerator Error Code PC ER — Power/Control Error
What this means
The PC ER error code on Whirlpool refrigerators indicates a critical power or control error with the main electronic control board. This error can be triggered by a significant power surge, a failed control board component, or a wiring issue that is causing the board to malfunction. The refrigerator may stop cooling entirely or behave erratically when this error appears. It is considered a serious fault that often requires board replacement.
Alternate codes: PCER
Step-by-step fix
4 stepsPerform a hard reset
Unplug the refrigerator from the wall outlet for a full 15 minutes. This ensures all capacitors on the control board are fully discharged. Plug it back in and observe whether the error clears and the compressor starts.
15 minutes is the recommended minimum for a complete reset. Shorter durations may not clear the error.
Check the power supply
Use a multimeter to verify the outlet is providing a steady 120V AC. Also check that the power cord is not damaged and that the plug fits snugly in the outlet. A loose connection or intermittent power can cause control errors.
If the refrigerator is on a GFCI outlet, check that the GFCI has not tripped. Refrigerators should ideally not be on GFCI-protected circuits.
Inspect the main control board
Unplug the refrigerator and remove the rear lower panel to access the main control board. Examine the board for any visible damage — burnt components, swollen capacitors, scorch marks, or corroded connections.
Water dripping from the defrost cycle can sometimes reach the control board and cause corrosion or shorts. Look for water stains on or near the board.
Replace the main control board
If damage is found or the error persists after reset, the main control board needs replacement. Disconnect all wire harnesses from the board, noting their positions. Remove the mounting screws, install the new board, and reconnect all wiring.
After installing a new control board, the refrigerator may need 24-48 hours to establish normal cooling cycles and reach set temperatures.
When to call a professional
Control board replacement on refrigerators can be straightforward but verification of proper operation requires monitoring over 24-48 hours. If you are not comfortable with electronics work, a technician can replace the board and verify proper operation.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Links may earn us a commission at no extra cost to you. We only recommend parts relevant to this repair.