GE Dishwasher Error Code F19

F19 on a GE dishwasher means the wash water did not reach the minimum required temperature during a cycle. The dishwasher tracks water temperature with a thermistor and expects the heating element to bring it up to a target threshold. When that threshold is not met in the allowed time, the control board triggers F19 and interrupts the cycle. The two components to inspect first are the heating element and the thermistor.

Running the dishwasher with an active F19 code means your water is not reaching proper wash temperatures, which reduces cleaning effectiveness and prevents sanitization. While it is unlikely to cause immediate harm to the appliance, dishes will not be properly cleaned, and bacteria may not be eliminated. It is best to resolve the fault before continuing regular use.

A reset may temporarily clear the F19 code and allow the dishwasher to start a new cycle, but if the underlying problem with the heater or thermistor is still present, the code will return. Resetting by cutting power at the circuit breaker for a few minutes is a reasonable first step to confirm the fault is active and not a one-time glitch. If F19 reappears after a reset, a proper component diagnosis is required before the error will stay cleared.

Some causes of F19 are DIY-friendly. Checking and tightening wiring connections, inspecting the harness for corrosion, and running hot water before starting the cycle costs nothing and requires no special tools. Testing the heating element for continuity and checking thermistor resistance requires a multimeter but is manageable for experienced DIYers. Replacing the heating element or thermistor involves working inside the dishwasher tub and disconnecting electrical components, so those with limited appliance repair experience may prefer to call a technician.

Repair costs vary depending on the faulty component. A replacement thermistor typically runs in the range of $15 to $50 for the part alone. A new heating element generally costs between $20 and $80 in parts. If a control board replacement is needed, parts alone can range from $80 to $200 or more. Adding professional labor costs will increase the total, usually by $75 to $150 depending on your area and service provider.