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GE Dishwasher H2O Code: What It Means and How to Fix It
Seeing H2O (or H20) on your GE dishwasher? Here is what GE says it means, the checks you can safely do yourself, and when to call a technician.
What Does H2O Mean on a GE Dishwasher?
GE says H2O means low water: not enough or no water came in during the timed fill. It is common on the first run, after plumbing work, or when the valve under the sink was turned off. GE says codes vary by model, so confirm yours in your Owner’s Manual. Sources: GE dishwasher codes (opens in a new tab) and H2O page (opens in a new tab).
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Common Signs With H2O
You may notice one or more of these along with the code.
What Causes GE H2O?
These are the causes GE lists and the parts a technician checks.
How to Fix GE H2O
Try these steps in order.
Open the water valve fully
GE says to open the hot water valve under the sink all the way, especially after plumbing work or on the first run.
Check that it is level
GE lists leveling the dishwasher as one of the fixes for H2O.
Clear the code
GE says switching to a different cycle option and back clears the code. Then run a cycle and watch it fill.
When to Call a Technician
Schedule a repair if:
- H2O returns with the valve open
- The dishwasher hums but won’t fill
- Water drips in when it is off
- You see leaks under the door
Related GE Dishwasher Pages
GE dishwasher repairMore help, including other GE codes:
GE dishwasher C1 error codeDishwasher repair for every brandGE dishwasher 999 error codeGE oven F2 error codeGE washer dE and Lid Locked error codeAll GE appliance repairGE dishwasher H2O pageWritten estimate first
Need Help With GE Dishwasher H2O?
ALAS technicians test GE dishwasher water valves, floats and sensors, and give you a written estimate before any repair.
- Diagnostic fee credited toward the repair
- 90-day warranty, 6 months for members
- Open daily, 8 AM–8 PM
GE Dishwasher H2O FAQs
GE says H2O means there wasn’t enough water during the timed fill. Open the hot water valve under the sink fully and level the dishwasher, then switch the cycle option to clear it.
GE says it is common after plumbing work, because the valve under the sink is often left partly closed. Open it fully and run another cycle.
GE notes that on models with a 1-Hour Wash cycle, other cycles may still work until service. If H2O returns after you have checked the supply, pressure, valve and leveling, schedule a repair.
Yes. GE writes it both ways; both mean low water during fill.
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