How to Fix Samsung Dishwasher Error 3C

⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: Dishwasher Difficulty: Easy

Problem: Water supply error; insufficient water pressure or flow during fill cycle

⚖️ Repair Decision
⚠️ CHECK WARRANTY / AGE

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How to Fix Dishwasher Error

  1. Verify household water supply valve to dishwasher is fully open (turn counterclockwise until stop).
  2. Check water supply hose for kinks, crushing, or blockages behind dishwasher.
  3. Disconnect supply hose from dishwasher inlet valve. Place towel underneath. Briefly open valve to confirm strong water flow into container.
  4. Clean inlet screen filter inside valve port using old toothbrush and white vinegar solution. Rinse thoroughly under running water.
  5. Reconnect supply hose hand-tight plus 1/4 turn. Ensure no leaks at connection.
  6. Confirm household water pressure is minimum 20 PSI using pressure gauge at nearby faucet.
  7. Restore power. Start Normal cycle and verify dishwasher fills to proper level within 90 seconds.
  8. If error recurs, check for closed saddle valve or clogged household water filter upstream.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

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Most DIY parts are $50–$250. If you have a quote, use the total.
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Expert: Mike Sullivan

EPA Section 608 Certified Technician with 18+ years experience.

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