Viking Oven Error Code EE02

EE02 indicates a failure in the AH (absolute humidity) sensor circuit. The control board has detected that the sensor's measured values are outside the normal acceptable range, pointing to a break or short-circuit in the sensor or its wiring. The control board's software and A/D circuitry monitor this sensor continuously, and EE02 is triggered when the readings become invalid.

It is generally not recommended to continue using the oven while this error is active. The AH sensor influences how the control board manages cooking conditions, and operating with a faulty sensor circuit means the oven is not functioning within its designed parameters. Until the fault is diagnosed and resolved, use of the oven should be limited or avoided.

Power-cycling the oven may temporarily clear the EE02 code, but if the underlying sensor fault is still present, the error will return during the next operating cycle. A reset does not repair a broken sensor element, damaged wiring, or faulty board circuitry. Proper diagnosis and component repair or replacement are required to permanently resolve the fault.

A knowledgeable DIYer can start by checking the AH sensor connector for loose connections, corrosion, or visible wire damage. If comfortable using a multimeter, you can disconnect the sensor connector from the board and measure resistance across the opened and sealed sides of the sensor to determine if the sensor itself has failed. However, if the wiring and sensor test normal, the control board may need professional diagnosis and replacement.

Repair costs depend on the root cause. If only the AH sensor needs replacement, parts and labor typically range from $150 to $350. If the control board's A/D circuitry is at fault and the board requires replacement, total costs can range from $400 to $800 or more depending on the specific model and labor rates in your area.