Frigidaire Dishwasher Error Code E66: How to Fix It

Q: What does Frigidaire dishwasher error code E66 mean?

Error code E66 indicates a heater relay fault in your Frigidaire dishwasher. This means the dishwasher cannot properly control the heating element, which affects water heating and drying performance.

Q: Can I still use my dishwasher with E66 error?

You should not continue using the dishwasher with an E66 error as it indicates a heating system problem that could worsen or pose safety risks. The dishes may not clean properly without adequate water heating.

Q: How much does it cost to fix Frigidaire E66 error?

DIY repair costs range from $15-50 for a new relay to $150-300 for a control board. Professional repair typically costs $200-400 including parts and labor, depending on which component needs replacement.

Q: Why does my Frigidaire dishwasher keep showing E66?

Recurring E66 errors usually indicate a failing heating element, damaged wiring, or a defective control board. Hard water deposits on the heating element or inadequate incoming water temperature can also trigger this error repeatedly.

Q: How do I prevent E66 error in my Frigidaire dishwasher?

Prevent E66 errors by maintaining your water heater at 120°F, using rinse aid to reduce mineral deposits, running hot water at the sink before starting the dishwasher, and scheduling annual maintenance to clean the heating element.

Abstract

Frigidaire dishwasher error code E66 indicates a heater relay fault, which prevents your dishwasher from properly heating water for effective cleaning and drying. This error typically occurs when the heating element circuit fails, the relay contacts are stuck, or there's a wiring issue in the heating system.