GE dishwasher C6 code: incoming water too cool

The water coming in is colder than the dishwasher needs. GE recommends at least 120°F at the inlet. The fix is usually at the water heater or sink.

Likely causes

Listed from most to least common.

1. Water heater set below 120°F
2. Long pipe run from the water heater to the kitchen
3. Hot water used elsewhere at the same time
4. Dishwasher connected to the cold supply

How to fix the C6 code

1. 1

   Step 1: Run the kitchen faucet first

   Before starting the dishwasher, run the hot tap at the sink until the water feels hot.

2. 2

   Step 2: Check the water heater setting

   Set the water heater to about 120°F. Do not go much higher, to avoid scalding.

3. 3

   Step 3: Avoid other hot water use

   Do not run the dishwasher while someone is showering or doing laundry.

4. 4

   Step 4: Pick a heated option

   Choose options that lengthen the cycle, such as a heavier wash or a high temperature option, so the dishwasher heats the water.

You'll need: Kitchen thermometer.

When to call a technician

Call a technician only if the water at the sink is hot and C6 still appears. The temperature sensor or control may need testing.

Models this applies to

• GE built-in dishwashers (GDT, GDF, GDP series)
• GE Profile dishwashers (PDT series)
• Café dishwashers (CDT series)

Codes can differ slightly between models. Your owner's manual is the final word and is available from GE support.

Common questions