F20 Moderate Easy DIY

Whirlpool Washer F20 / FH — No Water Detected

Whirlpool Washer · Error code F20

What F20 Means

F20 (or FH) means the washer did not detect water entering during the fill step — it never reached the expected level.

Symptoms

  • Washer will not fill
  • Cycle stalls at the start
  • F20 or FH on the display

Common Causes

1
Supply valves closed

The hot/cold faucets behind the washer are not fully open.

2
Clogged inlet screens

Mesh filters at the valve are clogged with sediment.

3
Faulty inlet valve

A valve that will not open.

4
Pressure sensor/hose fault

A clogged pressure hose makes the board think no water arrived.

How to Fix It

  1. Confirm both supply faucets are fully open with good pressure.
  2. Clean the inlet mesh screens where the hoses connect.
  3. Inspect the pressure sensor hose for clogs.
  4. Test and replace the inlet valve if it will not open.

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 Whirlpool Washer Water Inlet Valve View on Amazon→

Related Repair Guides

Washer Not Filling With Water — Causes and Fixes →

More Whirlpool Washer Codes

dET dET — Detergent Cartridge Empty F0E2 F0E2 — Over Suds Detected F0E3 F0E3 — Load Too Heavy / Basket Blocked F0E5 F0E5 — Off-Balance Load F0E7 F0E7 — Motor Control Unit Fault F1E1 F1E1 — Main Control Board (CCU) Fault

All Whirlpool 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.