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F
u1
Moderate
Fisher & Paykel · Dishwashers
Power Supply Error
Quick Answer
Error code U1 on your Fisher & Paykel Dishwashers means: Power Supply Error. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
DD24DCTX9NDD24DHTX9NDD24SAX9NDD24SI9NDD60DCHX9DD60SDFHX9
Likely Causes
  1. Incoming supply voltage is outside the acceptable range for the DishDrawer
  2. Power cord has a damaged conductor or loose connection at the terminal block
  3. Circuit breaker is tripping intermittently due to a ground fault or overloaded circuit
  4. Internal power supply board on the DishDrawer has a failed component
How to Fix It
1
Check the household circuit breaker for the DishDrawer circuit; reset if tripped
2
Measure the voltage at the wall outlet with a multimeter to confirm proper voltage (120V in North America, 220-240V in other regions)
3
Inspect the power cord and plug for damage, loose prongs, or burned insulation
4
Check the terminal block connection inside the DishDrawer where the power cord attaches for loose or burned wires
5
If the voltage is correct and connections are tight, the internal power supply board may be faulty and should be replaced
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Fisher & Paykel power supply board (model-specific)
Power cord (if damaged)
Terminal block connectors (if burned)
Related Error Codes
F1F2F3F4F5
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