What PC means on your Dacor dishwasher (dacor dishwasher pc)
Dacor dishwasher pc is specific to the zone-wash function some Modernist dishwashers offer, which lets a cycle concentrate spray on the upper or lower rack rather than both at once. When the main PCB’s check of this specific function fails, it means the zone-selection valve or spray path is not confirming correctly, not that the dishwasher’s overall wash system is compromised. Because zone-wash is a convenience feature rather than a core wash or safety function, Dacor rates this the lowest severity of the Samsung-era dishwasher codes.

Symptoms
What follows helps you confirm that your Dacor dishwasher has this specific problem rather than one that merely resembles it on a dishwasher.
- PC appears specifically when a zone-wash setting is selected rather than a standard full-tub cycle.
- Standard cycles without zone-wash selected may run completely normally.
- One rack may receive noticeably less spray than expected when zone-wash is active.
- The problem can appear consistently every time the zone-wash option is chosen.
- Dishes on the non-targeted rack may come out cleaner than the zone that was supposed to be prioritized.
Common causes
Any of the following can leave a Dacor dishwasher in this state, and telling them apart on the dishwasher decides whether a part is needed at all.
- Failed zone-selection valve — the valve directing water to a specific rack is not switching correctly.
- Wiring failure to the zone-selection mechanism — a loose connector prevents the main PCB from confirming the valve position.
- Blocked zone spray path — debris restricting water flow specifically to the targeted rack.
- Main PCB problem — the board’s own channel for the zone-wash check has failed.
- Mechanical binding in the valve assembly — age or mineral buildup preventing smooth valve movement.
Troubleshooting steps you can try
These are the checks an owner can safely make on a Dacor dishwasher: stop at the first one that asks you to touch live voltage, gas, or a sealed system inside the dishwasher.
- Run a standard, non-zone cycle to confirm the dishwasher’s core wash function is unaffected.
- Try the zone-wash option again on a later cycle to see whether pc recurs consistently.
- Check for visible debris around the spray arms on the rack the zone-wash setting targets.
- Power-cycle the dishwasher at the breaker before attempting the zone-wash function again.
- Use standard full-tub cycles in the meantime if zone-wash is not essential to daily use.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the zone-wash spray arm or valve, zone-selection wiring, and main pcb. The right part for your Dacor dishwasher is matched from its model and serial number, and confirming which component failed keeps the dishwasher repair to what it actually needs.
When to call a technician
PC is a low-severity, feature-specific problem, so it is reasonable to keep using standard cycles while a technician tests the zone-selection valve. Low severity means the dishwasher can wait, but a recurring PC on a dishwasher should be diagnosed rather than ignored. Independent service on a Dacor dishwasher means genuine OEM or trusted-supplier parts and a 30-day warranty on our workmanship.
Related help and Dacor resources
If the checks above did not clear the PC condition, book a technician for the dishwasher. Our dishwasher problem index covers the neighboring problems, and www.dacor.com carries the dishwasher spec.