Error code · Dishwasher

GE Dishwasher Code H2O: Low Water in the Tub

Medium · inspection needed

Code: H2O
Appliance: Dishwasher
Brand: GE
Warranty: 30-day workmanship

What H2O means

On GE electronic dishwashers that display C-codes, such as the GSD2340VSA, H2O means low water. The control counted the fill and did not see enough water in the tub. The next step depends on the cycle: on the 1-Hour Wash, the instruction is to schedule service, while on AutoSense, Heavy, Normal or Light cycles the inlet hose should be checked for a kink first. You will see the code on the display and the cycle stopped with little water inside.

Common causes of H2O

Inlet hose kinked or squeezed
Water supply valve partly closed
Inlet valve slow to open or partly blocked
Water level sensing misreading the tub

✓ One safe check you can try

1. Check that the water inlet hose is not kinked behind or under the dishwasher. 2. Make sure the hot water valve is fully open. 3. On AutoSense, Heavy, Normal or Light, start the cycle again. 4. If H2O appears on the 1-Hour Wash, or returns on any cycle, stop and schedule a visit.

! Why to stop there

A straight hose and open valve do not confirm the fill valve works.
We test the inlet valve and the sensing that reads the water level.
A written price comes before we begin.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

Smart Assist light redGE Dishwasher Smart Assist Light Red: A Potential Problem Was Detected Smart Assist light yellowGE Dishwasher Smart Assist Light Yellow: A Notification Is Waiting in SmartHQ Start light flashingGE Dishwasher Start Light Flashing: Door Opened or Cycle Interrupted Low Rinse AidGE Dishwasher Low Rinse Aid Indicator: Refill the Dispenser H20 (spelling variant)GE Dishwasher Code H20: Fill Brought in Too Little Water LEAK DETECTEDGE Dishwasher Message LEAK DETECTED: Cycle Canceled by the Control nH (Delay Start)GE Dishwasher Display nH: Delay Start Counting Down PFGE Dishwasher Code PF: Power Failure Noted by the Control

H2OH2O questions

What does H2O mean on a GE dishwasher?

The dishwasher did not take in enough water. The cycle you were running decides the first step, so check the hose on most cycles and call us on the 1-Hour Wash.

Why is H2O handled differently on the 1-Hour Wash?

On that cycle the instruction is to schedule service rather than check the hose. On AutoSense, Heavy, Normal and Light, a kinked inlet hose is worth checking first.

Is H2O the same as H20?

They look the same on the panel and appear to be one message. The cause is the same too: not enough water coming in during the fill.

Book a visit

Still seeing H2O?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 547-5545