U400 on an older CIT365DS or CIT304E induction cooktop means the cooktop is connected incorrectly. Current Thermador induction cooktops use U400 differently, so this is the older table's meaning only. It usually appears after installation, a…
U400 on an older CIT365DS or CIT304E induction cooktop means the cooktop is connected incorrectly. Current Thermador induction cooktops use U400 differently, so this is the older table's meaning only. It usually appears after installation, a move, or electrical work. The manual's remedy is to disconnect at the breaker or fuse, check the connection, reconnect, and call customer service if U400 returns.
1. Turn the cooktop off. 2. Switch off its circuit breaker or fuse before doing anything else. 3. Do not open wiring yourself; just confirm the cooktop's connection was not recently disturbed. 4. Restore power; if U400 appears again, leave it off and call for service.
The manual says the cooktop is connected incorrectly. New wiring, a moved cooktop, or a changed breaker can cause it, so the connection should be checked by a qualified person.
The manual does suggest disconnecting at the breaker or fuse and checking the connection. But if U400 comes back, it is a wiring matter and you should call customer service.
No. Current Thermador induction cooktops have their own U400 page and meaning. This one covers the older CIT365DS and CIT304E display, so check your model first.
Our technician checks it in your home and hands you a written price before touching anything.