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Bosch oven fault codes

If you have come here looking for a Bosch oven fault code table, there is not one. Bosch UK have a heading on their support site called Error Codes, and the single link under it takes you back to the page you clicked it from. We checked every other link beside it and they all work. What Bosch do publish is a handful of support articles that contradict their own manuals, usually by leaving out a free fix and recommending a paid engineer instead. Those contradictions are what these pages are about.

Where the code shows on a Bosch

Bosch is the exception inside its own group and it matters more than it sounds. Neff and Siemens run a shared troubleshooting database that publishes an enumerated oven code list with meanings and remedies. Bosch UK run the identical software against an empty dataset — it answers every request with no information found — and their one link to error code content redirects to its own parent page. That means a Bosch oven owner has no manufacturer code reference at all, while owners of the two sibling brands have a reasonably good one. It also means you should be sceptical of any site presenting a Bosch oven code table, because there is no Bosch source for it to have come from. What Bosch manuals do publish is the same catch-all their siblings use: a message beginning with D or E means the electronics detected a fault, switch the appliance off and on again, and if it returns, call the after-sales service quoting the exact message. Note the D prefix, which almost no third-party list mentions. The one place Bosch ever published named oven codes was a run of compact ovens with microwave from roughly 2011 to 2014, and current manuals for the successors have dropped that table. Two Bosch-specific display quirks to know. Their website claims the child lock shows LOC; six Bosch manuals say a key symbol or SAFE, and none of them mentions LOC. And their timer article covers the countdown timer while saying nothing about the clock, which is the far more common reason one of these ovens refuses to heat.

How to reset a Bosch

Bosch publish two procedures for their ovens and neither involves a long wait. On models with an on/off button, switch the appliance off and on again — if the fault was a one-off, the message simply goes. On models with a clock button, press that instead, and then reset the time if it has been lost. That second step is not incidental: across BSH ovens, clearing a fault and setting the clock are frequently the same action, and their compact oven manual makes the sequence explicit by telling you to press the clock button and then reset the clock. If you need to cut the power, BSH publish two short figures for their ovens and nothing longer: approximately ten seconds is the only duration they give for clearing a fault message, and their manuals’ demo-mode rows say to switch the circuit breaker off and back on again either briefly or, in the older compact-oven manuals, after approximately twenty seconds. The manuals send you to the circuit breaker in the fuse box; the same manuals also allow for a plug — Bosch say only a licensed professional may connect appliances without one — so if your oven has an accessible plug, that is the equivalent. Ignore the thirty seconds that circulates widely — it comes from BSH’s tumble dryer documentation rather than anything they have written about ovens. One restart is the limit worth attempting. Bosch’s own instruction routes you to the after-sales service the second time a code appears, and quoting the exact message is the part that shortens the visit.

Most common Bosch faults

The Bosch codes people look up most.

Every Bosch fault code

4 published codes. Filtering happens in the page — every one is in the HTML.

Showing 4 of 4 codes

Bosch models

Codes can differ between generations. Check yours.

Guides that help with Bosch faults

Looking for Bosch’s own support? www.bosch-home.co.uk. We are not affiliated with Bosch.