Jenn-Air Dishwasher Error Code E:31

E:31 indicates that the dishwasher detected an undervoltage condition, with supply voltage falling in the 170V to 195V range rather than the normal operating level. The appliance stops in its current position and becomes non-functional as a protective response. Because the first diagnostic step is classified as no appliance fault, the dishwasher itself is not the source of the problem. The issue lies with the household electrical supply.

Resetting the dishwasher may temporarily clear the E:31 code, but the error will return if the underlying low-voltage condition in your electrical supply is not corrected. Because the code is triggered by an external power issue rather than a component failure inside the appliance, the reset alone does not resolve anything. Address the voltage problem first, then restart the dishwasher.

Since E:31 points to an electrical supply issue rather than a dishwasher component failure, repair costs depend on the electrical work required. Hiring a licensed electrician to diagnose and correct a wiring or breaker issue typically runs in the range of $100 to $400 or more depending on the complexity of the repair. If the utility company is supplying low voltage, there may be no cost to you for the correction on their end.

Start by checking the household electrical supply rather than the dishwasher itself. Have a qualified electrician measure the voltage at the dishwasher's supply point under load conditions to confirm it falls below acceptable levels. Common fixes include tightening loose wiring connections, replacing a failing breaker, resolving circuit overload issues, or contacting the utility company if the incoming supply voltage is consistently low.

The dishwasher stops operating when E:31 is triggered, so it is not actively running in an unsafe state. However, the underlying cause of undervoltage in your home wiring can present broader electrical hazards, particularly if the issue involves a failing neutral connection or deteriorating wiring. It is advisable to have your electrical supply inspected before resuming use of the appliance.