H2O Moderate Easy DIY

GE Dishwasher H2O Error — Low Water / Not Filling

GE Dishwasher · Error code H2O

What H2O Means

H2O means the dishwasher did not take in the required amount of water within the allotted time.

Symptoms

  • Dishwasher not filling
  • Poor wash performance
  • H2O on the display

Common Causes

1
Supply valve not fully open

The under-sink water valve is partly closed.

2
Low inlet water pressure

Insufficient household water pressure to fill in time.

3
Faulty inlet valve

The water inlet valve is clogged or has failed.

How to Fix It

  1. Open the under-sink supply valve fully and check pressure.
  2. Clean the inlet screen; check the fill hose for kinks.
  3. Replace the water inlet valve if filling is still inadequate.

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 GE Dishwasher Inlet Valve View on Amazon→

More GE Dishwasher Codes

1h 1h — Delay Start Active 888 888 — Display Self-Test / Demo C1 C1 Error — Slow Drain (Over 2 Minutes) C2 C2 Error — Drain Cycle Too Long (Over 7 Minutes) C4 C4 — Turbidity / Wash Pump Fault C5 C5 — Heater / Heat Fault

All GE codes → All dishwasher codes →

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