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Error C6 Degraded US market

GE Dishwasher Error Code C6

C6 on a GE dishwasher usually means: The incoming water temperature is too low. On a GE Dishwasher, code C6 points to the water heater.

Fix it fast: Manufacturer troubleshooting steps. Full ranked steps below.

Likely part
water heater
Fault type
temperature
Manufacturer source Updated Oct 17, 2026 View source

How to fix C6 — ranked steps

Try these in order. Stop when the code clears.

  1. 1 Manufacturer troubleshooting steps

    DIY
    • The water temperature coming into the dishwasher should be at least 120 degrees F.
    • Run the faucet adjacent to the dishwasher prior to starting the dishwasher to purge any cold water from the line.
    • Adjust the water heater temperature.
    • Don't use the washing machine or take showers when using the dishwasher.
    • Use options on the dishwasher to cause the machine to run longer and thus add more heat.

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