Fisher & Paykel Dishwasher Error U01

⚡ Quick Answer: The Fisher & Paykel dishwasher U01 error code indicates a water supply issue, preventing the unit from filling with water. Symptoms include the dishwa... ✅ DIY Fixable

What Does Error U01 Mean?

The Fisher & Paykel dishwasher U01 error code indicates a water supply issue, preventing the unit from filling with water. Symptoms include the dishwasher failing to start, stopping early, or detecting no water during the wash cycle. Common causes are an insufficient water supply, a blocked or kinked inlet hose, or a dirty inlet filter screen. To resolve this, check that the water supply is turned on and the inlet hose is clear, and clean the inlet filter if necessary.

Common Symptoms:

  • Dishwasher fails to fill with water
  • Dishwasher won’t start or stops early
  • No water detected in wash cycle

Possible Causes

  • Water supply not turned on or insufficient water reaching unit (medium)
  • Blocked or kinked inlet hose or inlet filter screen (medium)

How to Fix Error U01

DIY Fix Check water supply and inlet conditions

  1. Ensure the dishwasher’s water supply valve is fully open
  2. Inspect the inlet hose for kinks, sharp bends, or visible blockages
  3. If accessible, turn off water and check the inlet filter screen for debris and clean it

DIY Fix Power cycle dishwasher to clear transient faults

  1. Turn off dishwasher using power switch or circuit breaker
  2. Wait 1–2 minutes
  3. Restore power and try a new wash cycle

Technician Only Inspect and test inlet valve and water pressure

  1. Measure inlet water pressure to confirm it meets the manufacturer’s specifications
  2. Test the water inlet valve for proper electrical function and flow
  3. Replace inlet valve if it fails testing

Parts needed: water inlet valve, pressure testing tool

🛑 When to Call a Pro:
  • If water supply checks and simple cleaning don’t clear the error
  • If inlet valve tests show failure
  • If internal leaks or flooding are suspected

Next step

Choose the next step for U01

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Water Inlet Valve

Controls the flow of hot and cold water into the appliance.

Typical part-only price
$25 - $60
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Dishwasher parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Dishwasher Cleaner and Descaler

Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.

View maintenance supply
Maintenance supply

Braided Dishwasher Inlet Hose

For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.

View maintenance supply

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Technical Specifications

wattage 50W
component Drain Pump
resistance 10-20 ohms
part_number FP-DW-DRN-PMP
voltage_rating 240V AC

Common Questions

What does U01 error mean on Fisher & Paykel dishwasher?

The U01 error indicates a water supply issue, preventing the dishwasher from filling.

Can I fix Fisher & Paykel dishwasher U01 error myself?

Yes, check the water supply, inspect the inlet hose for kinks, and clean the inlet filter.

How much does it cost to fix U01 error?

Repair costs for the U01 error range from $80 to $200 depending on the issue.

When should I call a technician for U01?

Call a technician if simple checks don’t resolve the issue or if the inlet valve tests show failure.

Sources & References

Data last verified: 2026-07-25

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