Fisher & Paykel Dishwasher Error Code U1
Flood protection activated — water in base
The flood protection system has detected water in the base tray of the dishwasher.
What Does Error Code U1 Mean on a Fisher & Paykel Dishwasher?
Flood protection activated — water in base.
The flood protection system has detected water in the base tray of the dishwasher.
What Causes Error Code U1?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Door seal damaged 35% of cases
- 2 Internal hose connection leaking 35% of cases
- 3 Oversudsing 20% of cases
- 4 Tub crack 10% of cases
How to Fix Fisher & Paykel Dishwasher Error Code U1
- 1
Tilt to drain base
Tilt unit forward to drain base tray (power off).
⚠️ Turn off power before tilting. - 2
Inspect door seal
Check gasket for damage.
🔩 F&P door seal ($35–$80) - 3
Check hose connections
Inspect all internal connections.
How to Reset Error Code U1
Drain base, fix leak, dry. Code clears when sensor resets.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
When to Call a Professional
If no visible leak, internal crack needs F&P authorized inspection.
Related Error Codes
Find Replacement Parts
Use these links to find the exact replacement parts for your Fisher & Paykel Dishwasher:
External links — ApplianceErrors.com is not affiliated with these retailers.