Whirlpool & KitchenAid Dishwasher Thermal Fuse Parts — Models & Compatibility

Your Whirlpool or KitchenAid dishwasher won't start, and you've already checked the door latch and control panel — the thermal fuse might be blown. This safety component cuts power when temperatures exceed safe limits, and once it trips, your dishwasher becomes completely non-responsive. This hub covers the W10402110 thermal fuse kit that fits dozens of Whirlpool, KitchenAid, Kenmore, and Amana dishwasher models.

Is This the Right Part for Your Model?

Check your dishwasher's model number — it's usually on a label inside the door frame or along the top edge of the tub. Cross-reference it with the compatibility list below. This thermal fuse (also known by part numbers AP5645909, W10195528, and PS4704481) fits primarily Whirlpool-manufactured dishwashers from the DU, DP, CUD, and KUDC series. If your model number starts with those letters, you're likely in the right place.

About This Replacement Part

The thermal fuse is a one-time safety device mounted near the control board or heating element. When internal temperatures spike — often due to a stuck heating element relay or blocked vent — the fuse melts an internal link and permanently breaks the circuit. Unlike a resettable thermostat, you can't reset it; replacement is the only fix. The W10402110 kit includes the fuse itself plus mounting hardware. It's a straightforward swap once you've accessed the control panel area, though you'll need to disconnect power and may need to remove the door panel depending on your model's design.

Compatible Dishwasher Models

This thermal fuse fits the following Whirlpool, KitchenAid, Kenmore, and Amana dishwasher models:

• DU1010XTXQ2 — Whirlpool
• DU1015XTXQ1 — Whirlpool
• CUD6710XQ2 — Whirlpool
• CUD6710XQ3 — Whirlpool
• DP1040XTXB1 — Whirlpool
• DP1040XTXB3 — Whirlpool
• DP1040XTXB4 — Whirlpool
• DP1040XTXB5 — Whirlpool
• DP1040XTXQ1 — Whirlpool
• DP1040XTXQ3 — Whirlpool
• KUDC10FXBL1 — KitchenAid
• KUDC10FXBL2 — KitchenAid
• KUDC10FXBL3 — KitchenAid
• KUDC10FXBL4 — KitchenAid

This list represents the most common models — the actual compatibility extends to many more variations within these series. Always verify your specific model number before ordering.

Why This Part Fails

Thermal fuses don't wear out from normal use — they fail because something else went wrong first. The most common triggers include a shorted heating element that won't turn off, a failed control board relay that keeps power flowing to the heater, or severely restricted airflow around the heating components. If you're replacing this fuse, you should also test the heating element for continuity and resistance (should read around 15-30 ohms, not zero or infinite). Otherwise, you'll blow the new fuse within a few cycles.

Installation Overview

Disconnect power at the breaker — this isn't optional with electrical safety components. Remove the dishwasher's lower access panel or inner door panel to reach the control board area where the thermal fuse mounts. The fuse usually attaches with a single screw and has two wire terminals. Disconnect the wires (take a photo first), remove the old fuse, install the new one, and reconnect the wires in the same configuration. Before reassembling everything, test the heating element and control board operation to make sure whatever caused the fuse to blow has been addressed.

Order Your Replacement Thermal Fuse

The W10402110 thermal fuse kit is available for $32.99 with fast shipping. This is a genuine OEM-equivalent part that meets the original manufacturer's specifications. If you've confirmed your dishwasher model matches the compatibility list and you've diagnosed the issue as a blown thermal fuse, you can order with confidence.