A cooking zone stayed on for a long period with no control input, so the range's automatic time limit turned it off.
Model compatibility: Bosch reuses codes across series and model years, so F8 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
A cooking zone ran for an extended time without any interaction, which triggered the automatic time limitation.
A cold cooking zone and F8 on the display, together with H or h, tell you what happened on a Bosch induction slide-in range: the zone had been running a long time with no one touching the controls, and the automatic time limitation turned it off.
How to get cooking again
Touch any control element.
Set the cooking zone again and continue.
Purpose of the limit
If a zone stays on for a long time with no input, it may simply have been forgotten, so the range stops heating. This is a built-in safeguard. Bosch’s slide-in range page names no fault or part behind it.
Avoiding it
During a long, slow simmer, adjust or confirm the zone every so often.
The length of the limit is not published by Bosch, which makes this a habit rather than an exact rule.
When F8 does not fit the time-limit story
For F8, the slide-in range page lists no service step. A code that appears shortly after you set a zone, or while you are actively using the controls, falls outside Bosch’s description, and that is when to call for service.
When F8 turns up in the middle of cooking, phone (310) 879-1577 for Bosch range service in Los Angeles and describe the moment it appears. Our oven and range service page lists what we cover.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Bosch appliance?
Book a specialist visit for a clear estimate and approval before any repair.
