21 Moderate Moderate DIY

Fisher & Paykel Washer Fault 21 — Water Valve Failure

Fisher & Paykel Washer · Error code 21

What 21 Means

Fault 21 indicates a water (inlet) valve failure.

Symptoms

  • Fill problems
  • Fault 21 shown

Common Causes

1
Failed inlet valve solenoid

The water inlet valve has failed.

2
Valve wiring/connector

A harness fault to the valve.

How to Fix It

  1. Confirm the supply taps are open.
  2. If Fault 21 returns, test/replace the water inlet valve.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Fisher & Paykel Washer Inlet Valve View on Amazon→

More Fisher & Paykel Washer Codes

10 Fault 10 — Temperature Sensor Error 12 Fault 12 — Flood Protection 37 Fault 37 — Blocked Drain Pump F1 F1 — Lid lock fault (SmartDrive top-loader)

All Fisher & Paykel codes → All washer codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.