Customer Questions and Answers for Heater Wire Harness (Dishwasher) by Whirlpool

This heater wire harness connects the dishwasher's heating element to the unit's electrical system. Replacing a burned or brittle harness restores safe, consistent power delivery so the element can heat properly during wash and dry portions of the cycle.

• Routes power from the main wiring to the heater terminals
• Ensures secure, high-temperature connections at the element
• Damage can cause no heat, poor drying results, or intermittent heating
• Visual clues include melted/browned connectors or loose terminals at the heater

• Disconnect power at the breaker before servicing
• Access the heater connections from the bottom/front of the unit and note wire routing
• Transfer one lead at a time; fully seat terminals and keep wiring clear of hot or moving parts
• Inspect heater studs for pitting/discoloration; replace the element if terminals are damaged or the connector shows severe overheating