Written by
Marcus Delaney Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeC6
ApplianceDishwasher
Why C6 appears
The dishwasher judges its water to be too cold. GE states that water entering the machine ought to be 120 degrees F at minimum.
Ways to raise the temperature
Before starting the dishwasher, let the faucet closest to it run to flush cold water out of the pipe.
Change the water heater setting.
Do not run the washing machine or take showers while the dishwasher works.
Choose dishwasher options that lengthen the cycle, since a longer run adds heat.
Similar-looking codes
A fault in the temperature sensor is a separate code: C7. A machine that gets too little water at all is covered by H2O.
San Francisco dishwasher repair
If C6 stays after the faucet, heater and cycle changes, call (415) 729-2045 about dishwasher repair in San Francisco and the Bay Area. Have the model number and a list of what you adjusted.
Model compatibility: GE reuses codes across series and model years, so C6 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
The water temperature is too low.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your GE appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your GE appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
