Samsung Dishwasher Error Code PC: Meaning, Causes, and Quick Fix Guide
Seeing PC error on your Samsung dishwasher? Learn what it means, common causes, and simple steps to fix the zone wash/diverter issue.
ERROR CODES
4/26/20262 min read
⚠️ What Does “PC” Error Mean?
If your Samsung dishwasher is showing PC, it usually indicates a Zone Wash or diverter motor error.
👉 In simple terms:
The dishwasher is unable to switch water flow between different spray zones properly.
🧠 Why This Error Happens
🔄 1. Faulty Diverter Motor
The motor that redirects water between spray arms may stop working.
🧩 2. Stuck Diverter Valve
Food particles or scale buildup can block the valve’s movement.
⚡ 3. Wiring or Sensor Issue
Loose connections or sensor miscommunication can trigger the PC error.
💧 4. Hard Water Deposits
Mineral buildup can affect internal moving parts over time.
🛠️ How to Fix Samsung PC Error
✔️ Step 1: Reset the Dishwasher
Turn off the machine
Unplug it for 5–10 minutes
Restart
This can fix temporary glitches.
✔️ Step 2: Run an Empty Cycle
Use a cleaning solution or vinegar
Run a hot cycle
This may clear minor blockages in the diverter system.
✔️ Step 3: Clean Spray Arms
Remove top and bottom spray arms
Rinse thoroughly
Clear clogged holes
Proper flow helps the system operate normally.
✔️ Step 4: Check for Obstructions
Inspect inside the dishwasher base
Look for debris that may block moving parts
✔️ Step 5: Inspect Diverter Motor (Advanced)
If you’re comfortable:
Access the bottom panel
Check if the diverter motor is stuck or damaged
Otherwise, skip this step.
🔧 When to Call a Technician
You’ll likely need professional help if:
Error appears repeatedly
Dishwasher isn’t cleaning properly
No change after reset and cleaning
You hear unusual clicking or grinding sounds
In many cases, the diverter motor needs replacement.
🛡️ Prevention Tips
Clean spray arms monthly
Avoid putting heavily soiled dishes directly
Use dishwasher cleaner regularly
Install a water softener if you have hard water
Run maintenance cycles every few weeks
🚨 Warning Signs Before PC Error
Uneven cleaning (top or bottom rack not cleaned properly)
Weak water pressure from spray arms
Strange internal noises
These are early signs of diverter issues.
💬 Final Thoughts
The PC error in Samsung dishwashers is mainly related to water distribution failure, not drainage or filling issues.
The good news? Minor cases can be fixed with cleaning and resets.
But if the diverter motor is faulty, replacement is the long-term solution.
Read More:
Dishwasher flashing lights? Causes, Meaning, and fixes
Dishwasher making grinding noise - Causes, fixes & prevention