What E9010 Means
E9010 is the connection code rather than the supply code. Bosch lists it immediately after the incorrect-voltage code and gives it a distinct meaning: the hob has not been wired in the way the circuit diagram requires. On cooktops that can be wired for different supply arrangements, connecting the bridging links or the phase conductors the wrong way produces exactly this. The documented solution is to disconnect the hob and re-establish the connection as the diagram shows.
Common Causes of E9010
- Connection block bridging links fitted in the wrong arrangement
- Phase or neutral conductors landed on the wrong terminals
- Appliance wired for a different supply configuration than the one it is on
🔧 One Safe Check You Can Try
Do not attempt to rewire a cooktop connection block yourself. Turn the cooktop off at its breaker and leave it off, and if the appliance was installed or moved recently, tell the installer what the display is showing.
⚠ Why You Shouldn't Go Further Than That
- Cooktop supply circuits carry high current, and the connection block is the one place in the appliance where every conductor is exposed.
- Getting the bridging links wrong is what caused this code, and correcting them by trial and error risks destroying the electronics that have so far refused to run.
- The correct arrangement differs between models and between supply types, so the diagram for your exact appliance is the only reliable reference.
- In most jurisdictions the fixed wiring side of this is licensed electrical work rather than an appliance repair.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.