KitchenAid Dishwasher Error 8-1 — What It Means & How to Fix It

What Does This Error Mean?

Error 8-1 means your KitchenAid dishwasher detected that the water did not reach the required wash temperature within the expected time. This is usually caused by a failed heating element or a faulty thermistor (temperature sensor). A power reset sometimes clears a one-off 8-1; recurring errors point to a heating component that needs replacement.

Affected Models

KDTM354DSS
KDFE104HPS
KDTE334GPS
KDTM604KPS
KDTE254ESS

Common Causes

Failed or burned-out heating element at the bottom of the tub
Faulty thermistor (temperature sensor) reporting incorrect temperature to the control board
Water supply temperature too low — incoming water is too cold for the element to compensate
Wiring fault between the heating element and the control board
Control board not activating the heating circuit

How to Fix It

Cancel the current cycle, unplug the dishwasher from the wall outlet, wait 5 minutes, then plug it back in.

A power reset clears temporary control board errors and is worth trying before any further investigation.
Check the hot water supply to the dishwasher. Run the kitchen tap on full hot for 30 seconds before starting a cycle — this purges cold water from the supply line so the dishwasher fills with hot water.

KitchenAid dishwashers connect to the hot water supply; if cold water is in the pipe, the element has to work much harder and can time out before reaching temperature.
Confirm your home water heater is set to at least 120°F (49°C). A water heater set below this temperature significantly increases heating time and can trigger 8-1.

This is a very common and overlooked cause of dishwasher heating errors.
Run a Normal wash cycle and observe whether the dishes come out warm and dry at the end. If they come out cold and wet, the element is almost certainly not heating.

A functioning element will leave the interior of the tub warm to the touch immediately after a hot cycle.
If the element is confirmed not heating, unplug the machine and contact a technician — do not attempt to test or replace the element yourself as it involves electrical connections inside the tub.

Providing the technician with the error code and your model number will help them bring the right parts on the first visit.

When to Call a Professional

If a power reset does not clear 8-1 and dishes are coming out cold or wet (the drying cycle relies on heat), the heating element or thermistor needs professional testing. The heating element is located at the bottom of the tub and requires partial disassembly to replace. Contact KitchenAid service or an authorised appliance technician.

Frequently Asked Questions

My dishes are clean but still wet after the cycle — is this related to error 8-1?

Yes — if the heating element is not working, the drying phase will be ineffective because KitchenAid uses heat to evaporate moisture from dishes. Wet dishes combined with 8-1 strongly indicate the element has failed.

Can a low hot water heater setting really cause error 8-1?

Yes — if your water heater is set to 110°F or below, the incoming water is too cold and the dishwasher element cannot raise it to the required 140°F (60°C) within the cycle time. Raising the water heater to 120°F often resolves this without any repair work.

Is 8-1 a safety risk if I keep running the dishwasher?

If the element has failed and is not heating, there is no immediate safety risk — the machine will run cycles with cold water. However, cold washes are less hygienic and do not sanitise dishes effectively, so the fault should be repaired promptly.