Frigidaire Dishwasher Error Code I40: How to Fix It

Q: What does error code I40 mean on a Frigidaire dishwasher?

It means the dishwasher has detected a heating element fault – the heater isn't working or its circuit is open.

Q: Can I use my dishwasher with error I40?

No. The dishwasher may not heat water, so dishes won't dry properly and the cycle may stop. Using it could also cause further damage.

Q: How much does it cost to fix a Frigidaire dishwasher error I40?

DIY cost is $30-$80 for a new heating element. Professional repair ranges from $150 to $300.

Q: How do I reset Frigidaire dishwasher error I40?

Unplug the dishwasher for 5 minutes, then plug it back in. Start a rinse cycle. If the error returns, the heating element needs replacement.

Q: Why does my Frigidaire dishwasher keep showing I40?

Usually a bad heating element, failed thermostat, or loose wiring. Rarely, it's a control board issue.

Abstract

Frigidaire dishwashers show error code I40 (or i40) when the heating element or its circuit fails. This usually means the dishwasher can't heat water properly. The fix involves checking the heating element, thermostat, and wiring. Most issues are resolved by replacing the heating element assembly.