Samsung · All
Samsung Error Code PC
Power communication error between the inverter and main control boards.
Caution — professional help advisedWhat the Samsung PC code means
The PC error code on a Samsung all is a diagnostic fault reported by the appliance's main control board. In plain terms, it signals power communication error between the inverter and main control boards. When this code appears, the all pauses its current cycle as a safety measure to prevent water damage, electrical strain, or mechanical wear, and waits for the homeowner or a technician to inspect the underlying cause. Understanding exactly what the Samsung PC code points to — and the most common parts and behaviors that trigger it — lets you decide whether this is a quick five-minute fix you can perform yourself, or a job that warrants a professional service call.
Tools and supplies you'll need
Gather the following items before you start so you don't have to stop mid-repair with the appliance partially disassembled. Having every tool within arm's reach also reduces the risk of forcing a stuck part, which is a common cause of secondary damage during DIY appliance repairs.
- Phillips screwdriver
Comprehensive step-by-step troubleshooting & fixes
Follow each step in order. Before you begin, unplug the appliance from the wall outlet or flip the dedicated breaker so the unit is fully de-energized. Keep a towel and a shallow pan within reach in case any residual water escapes during the repair.
- 1
Cut power at the breaker for
Cut power at the breaker for 10 minutes.
- 2
Open the rear panel and locate
Open the rear panel and locate the inverter board near the motor.
- 3
Reseat the communication harness between the
Reseat the communication harness between the inverter and the main PCB.
- 4
Replace the inverter board if the
Replace the inverter board if the fault persists after a clean reseat.
This repair can involve high-voltage wiring, sealed refrigerant or gas lines, or heavy moving parts inside the all. Always disconnect the appliance from its power source at the breaker, shut off any associated water or gas supply, and let internal components cool before working on them. If you are not fully confident in any step, stop and contact a licensed appliance technician — the cost of a service call is far lower than the cost of an electrical shock, gas leak, or flooded floor.
Always disconnect power before servicing any appliance.
After the repair: how to verify the PC code is gone
Once you've completed the repair, restore power to the Samsung all and run a short test cycle — a quick rinse, drain, or self-diagnostic mode, depending on your model — to confirm the PC fault has cleared. Watch the display for the first two to three minutes: if the code immediately reappears, the underlying component has not been fully resolved and you should recheck the part you serviced, inspect the wiring harness for a loose connector, or replace the related sensor. If the cycle completes normally and no fault is shown, your all is safe to return to regular use. To prevent the PC code from coming back, schedule a monthly check of debris filters, drain lines, door gaskets, and supply hoses — the vast majority of repeat-fault service calls trace back to gradual buildup that could have been cleared in five minutes.
Frequently asked questions about Samsung PC
Is it safe to keep using my all while PC is showing?
No. The control board has paused the cycle specifically to prevent further damage. Continuing to run the appliance can compound the issue and turn an inexpensive DIY fix into a major repair.
Will resetting the appliance clear the PC code?
A power-cycle reset (unplugging for 5–10 minutes) may silence the code temporarily, but if the underlying fault is still present the code will reappear on the next cycle. Always perform the diagnostic repair above rather than relying on a reset alone.
How much does a professional charge to fix this?
In most U.S. metros, a licensed appliance technician charges between $120 and $300 for a diagnosis-plus-repair visit on this type of fault, with the higher end reflecting parts replacement. If the steps above resolve the issue, you'll typically save the full service-call fee.