Error Code PC
The water distribution motor that directs spray isn't working properly
Moderate
Address soon - your appliance may not work properly
Also displayed as: No display (PC in recall)
What This Means
Synchronous motor (distributor motor) is out of order; Location in the cam is incorrect; Micro switch is defective; Cam assembly is misaligned or damaged
What actually causes this:
The motor that directs water flow to different spray zones has failed or gotten stuck
First Thing to Check
Try running a normal cycle — if dishes on one side are consistently not clean, this motor may be the issue
Parts Involved
How to Fix
- 1
1. Check the connections for the distributor motor and micro switch connectors — reconnect
- 2
2. Check whether the coil in distributor motor is conductive (remove connectors before measuring) — Normal: approximately 3.6-4.0k ohms
- 3
3. Check micro switch position sensing: conduction between brown wire and violet wire — Micro switch ON: SHORT, Micro switch OFF: OPEN. Use n5 Service test mode. Sign should alternate ON/OFF; NG if stuck in one state for 120 seconds
- 4
4. Adjust Cam Assembly and find the fault — replace Cam Assembly if faulty
- 5
5. Check whether half load is operating normally — check operation voltage: Normal 110-120V. Check distributor motor relay voltage between CN401 pin 3 (Brown) and CN101 pin 1 (White) — Normal: 110-120V while operating
- 6
6. Check the Power Relay
Other Error Codes for DW80M9550USAA
The dishwasher's main computer and the display board can't talk to each other
The motor controller board inside the dishwasher stopped responding
Water is leaking inside the base of the dishwasher
Too much water detected inside the dishwasher
The main wash pump that sprays water isn't working properly
The dishwasher door isn't fully closed
The automatic door-opening feature isn't working
The dishwasher isn't getting enough water to run