Jenn-Air Dishwasher Error Code E:13

E:13 means the dishwasher's control board has detected that one or more NTC thermistor resistance readings are outside the permitted range. The NTC thermistors are temperature sensors that the appliance uses to regulate wash cycles and control the auxiliary drying system. When this fault is active, the dishwasher disables the auxiliary drying function but continues to run standard wash and rinse cycles. The underlying cause is typically a faulty thermistor, damaged wiring, or a corroded connector.

Start by measuring the resistance of each NTC thermistor using a multimeter and compare the readings against expected values for the current temperature. If a sensor reads out of range, it should be replaced. If the sensors measure correctly, inspect the wiring harness and connectors between the sensors and the control board for damage, corrosion, or loose terminals. If both the sensors and wiring check out, the control board itself may need to be evaluated.

Repair costs depend on the root cause. If the fix is a corroded connector that can be cleaned and reseated, out-of-pocket costs may be minimal. Replacing an NTC thermistor is generally an inexpensive repair, with parts typically ranging from around $10 to $40 and modest labor time. If the control board is at fault, parts and labor costs will be significantly higher, often ranging from $150 to $400 or more depending on the service provider and board pricing.

A reset may temporarily clear the E:13 code from the display, but if the underlying sensor or wiring fault is still present, the code will return once the control board takes another out-of-range reading. A reset is a useful first step to confirm whether the fault is intermittent, but it does not repair the failed component. Proper diagnosis with a multimeter is required to resolve the error permanently.

Yes, the dishwasher is designed to continue operating in a reduced mode when E:13 is active, running wash and rinse cycles normally while disabling the auxiliary drying system. This means dishes may not dry as thoroughly, but there is no indication that continued use poses a safety risk. That said, the fault should be diagnosed and repaired promptly to restore full functionality and prevent any further component stress.