Wolf Range Error Code 1622

Error code 1622 means the DLB relay on the auxiliary outputs board is detected as open when the control system expects it to be closed, specifically in the left oven circuit. This relay is responsible for completing the high-voltage circuit to the left oven heating elements. The range disables the left oven when this fault is active to prevent unsafe operation. Diagnosis involves checking the relay, the auxiliary outputs board, and the wiring between the boards.

The left oven will typically be disabled when code 1622 is active, so it will not heat. Other cooking zones or the right oven, if equipped, may remain functional. You should not attempt to bypass or ignore the fault, as the DLB relay is a safety component designed to ensure positive shutoff of the oven heating circuit.

Repair costs depend on which component has failed. Relay or auxiliary outputs board replacement parts for Wolf ranges typically fall in the range of $150 to $500 or more for the parts alone, and labor charges vary by region and service provider. If the main control board is also involved, total repair costs can be significantly higher. Getting a diagnostic estimate from an authorized service technician before authorizing repairs is advisable.

Resolving error code 1622 involves working inside the range with components that carry line voltage, which presents a serious shock hazard. A technician with experience in appliance electronics should perform the relay testing, voltage measurements, and board replacement if needed. DIY repair is not recommended unless you have specific training in high-voltage appliance service.

Cycling power to the range may temporarily clear the error display, but the underlying fault will cause the code to return once the control attempts to operate the left oven again. A reset does not repair a failed relay, damaged wiring, or defective control board. Professional diagnosis is needed to permanently resolve the fault.