Wolf Cooktop Error Code E45

E45 means the cooktop has detected an open circuit in the temperature sensor for Generator 3, which controls the rear-right burner. As a safety precaution, the cooktop automatically shuts down that burner when this fault is detected. The problem is most likely located in the generator board or the wiring connected to it. A technician will need to inspect the board and associated wiring to diagnose the root cause.

The rear-right burner affected by E45 will be shut down and non-functional, so there is no immediate fire or heat hazard from that specific burner. The remaining burners should continue to operate normally. However, you should have the fault repaired promptly rather than operating the cooktop indefinitely with a disabled burner and an unresolved control board fault.

Repair costs for E45 vary depending on the cost of the replacement generator board and local labor rates. Generator board parts for Wolf cooktops typically fall in the range of $150 to $400 or more, and professional labor to diagnose and replace the component generally adds $100 to $250 depending on the technician and region. Total repair costs commonly range from $250 to $650 or higher.

The primary repair for E45 is replacing the affected generator board, which involves working with internal cooktop components and electrical connections. This repair is best performed by a qualified appliance technician familiar with Wolf cooktops. Homeowners with electrical repair experience may be able to inspect connectors and wiring for obvious damage, but board replacement typically requires professional service.

A power reset by turning off the cooktop at the breaker for a few minutes may temporarily clear the error display, but if the underlying open sensor condition remains, the E45 code will return and the rear-right burner will shut down again. A reset does not address the failed component causing the fault. Permanent resolution requires repairing or replacing the defective generator board or wiring.