W10402110 Dishwasher Thermal Fuse & Insulation Kit

Key Features

• Critical Thermal Safety Cut-Off: Engineered as a high-precision safety device that permanently breaks the electrical circuit if internal temperatures reach dangerous levels, protecting the control board and your home from fire hazards.
• Complete Shielding System: Includes a high-density protective insulation sleeve and reflective heat foil to shield the fuse from localized heat spikes and steam, preventing "nuisance" trips and extending the life of the replacement.
• Upgraded High-Temp Harness: Features pre-crimped, high-temperature wire leads designed to replace original wiring that may have suffered microscopic heat damage or high-resistance oxidation at the terminals.
• Industrial-Grade Mounting: Includes heat-resistant zip ties to securely anchor the fuse and insulation to the wire harness, ensuring it remains in the optimal sensing position behind the control console.

Replaces / Cross-Reference Part Numbers

• Primary Parts: W10402110, W10402110VP, W10195528.
• Industry Standards: AP5645909, PS4704481, EAP4704481.

Compatibility & Fitment

This thermal fuse kit is the standard safety replacement for modern Whirlpool-manufactured dishwashers produced after 2010. Key compatible brands include:

• Whirlpool: Fits many WDT, WDF, and GU series models (e.g., WDT720PADM, WDF520PADM).
• Kenmore (665 Series): Compatible with hundreds of 665-prefix "Elite" and standard dishwashers (e.g., 665.13263K311).
• KitchenAid: Fits various KDTM, KDTE, and KUDC series units (e.g., KDTE104ESS, KUDC10FXSS).
• Maytag & Amana: Direct fit for MDB and ADB series models utilizing the W10402110 fuse style.
• Note: This fuse is typically located at the Top of the Inner Door, tucked inside the plastic control console. If your dishwasher was built before 2005, it may use the older 675813 kit instead.

When to Replace

• No Power / Completely Dead: The dishwasher is plugged in and the breaker is on, but there are no lights on the control panel and the machine will not respond to any buttons.
• Sudden Mid-Cycle Shutdown: The dishwasher stops abruptly during a high-heat cycle (like "Sani-Wash" or "Heavy Duty") and refuses to turn back on.
• Visible Heat Damage: Upon opening the console, the plastic fuse housing or the wire connectors look discolored, charred, or melted.
• Continuity Test Failure: Using a multimeter, the fuse shows "Open" (no continuity), indicating it has tripped to protect the electrical system.
• Control Board "HE" Error: On some models, a failing or tripped thermal fuse circuit can trigger heating-related error codes before the unit loses power entirely.

Installation Tips

• Safety First: You MUST unplug the dishwasher or turn off the circuit breaker. This repair involves working directly with 120V line voltage behind the control console.
• The Harness Rule: You must install the new wire leads included in the kit. Simply swapping the fuse often fails because the original connectors have lost their tension, creating resistance-heat that will blow the new fuse immediately.
• Apply the Foil & Sleeve: Slide the protective sleeve over the fuse and wrap the reflective foil according to the instructions. This shielding is critical to prevent steam from the vent from causing a premature fuse failure.
• Secure with Zip Ties: Use the included zip ties to keep the wires and fuse assembly away from the venting area and the plastic door latch mechanism.
• Inspect the Heater: After replacing the fuse, check the Heating Element at the bottom of the tub. A cracked or grounded element is the #1 reason thermal fuses blow during a wash cycle.