h2o
Easy Fix
Whirlpool · Dishwashers
Water supply issue - insufficient water
Quick Answer
Error code H2O on your Whirlpool Dishwashers means: Water supply issue - insufficient water. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Step 1: Check that the water supply valve is fully open.
2
Step 2: Verify adequate water pressure.
3
Step 3: Inspect the supply hose for kinks.
4
Step 4: Test the water inlet valve.
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Water inlet valve
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