Wolf Module Cooktop Code E25: Output driver watchdog error

What E25 means

On Wolf integrated module cooktops from the 2015 series, such as the CI152TF/S and FM15TF/S, E25 means an output driver watchdog error. The watchdog is a safety monitor on the circuit that switches power to the burners and modules, and it tripped. The control stops heating as a precaution and shows E25. It usually points to the power board or its output drivers, not to anything you did.

Common causes of E25

Output driver circuit on the power board not behaving correctly
Watchdog monitor tripped by a control or power board problem
Power supply disturbance

✓ One safe check you can try

1. Turn every module off and let the glass cool. 2. Disconnect the cooktop at its breaker for a minute, then reconnect it. 3. See whether the cooktop starts without E25. 4. If E25 returns, leave it off and call us; output drivers carry live heating power.

! Why to stop there

The output drivers control heating power, so we do not ask owners to test them.
A tripped watchdog is a safety stop and we respect it.
Expect a written quote before work starts and 30 days of workmanship coverage once it is done.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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E25E25 questions

What is a watchdog?

It is a safety monitor that checks the circuit controlling burner power. When it detects a problem, it stops heating, which is what E25 reports.

Does E25 mean the cooktop caught fire or burned out?

No. It is a protective shutdown. Still, we do not recommend using it until the output circuit has been tested. Our technician explains what was found in plain words.

Can a power surge cause E25?

A disturbance can trip the monitor, so one breaker reset is worth trying. If the code returns, the power board or drivers likely need repair.