Five Bosch oven and range codes are decoded here, and three of them concern the boards rather than the cavity. E1 is a main control fault, E5 is a communication failure between the control and the display board across a ribbon cable or harness, and E6 is the door lock — motor, switch, or the wiring between them. The other two are temperature: E3 is an oven sensor read as an open circuit, and E2 is a runaway temperature, where a relay stuck closed or a failed sensor has left the oven heating past where it should have stopped.
The guides distinguish faults that are annoying from faults that are self-worsening. E5 is diagnosed at the ribbon cable and the connectors before either board is bought, because a display that has stopped answering looks exactly like a display that has failed. E3 is proved by resistance at the sensor plug rather than by substitution. E2 is treated differently from the rest: the first question is whether the element ever de-energises, since that answer decides whether the appliance is safe to leave powered while parts are sourced.
A runaway-temperature code is the one place in this index where the correct first action involves the breaker, not the display. A welded relay does not care that the code was cleared, and a self-clean cycle behind a locked door removes the easy way to intervene. Everything at the back of the cavity sits at line voltage, and a gas range adds a supply line to the same space. EasyBear services Bosch ovens and ranges across Sacramento and the Bay Area.
Bosch Oven/range Error Code Guides — Quick Reference#
| Error Code | Summary |
|---|---|
| Bosch Oven/Range E1 Error Code: Causes & Fix | Bosch oven/range E1 points to a control-board fault, often after a power surge. Why the oven goes dead, the one safe ... |
| Bosch Oven/Range E2 Error Code: Causes & Fix | Bosch oven/range E2 is a safety-critical runaway-temperature code. Do not reset power — a welded relay is a fire risk... |
| Bosch Oven/Range E3 Error Code: Causes & Fix | Bosch oven/range E3 means an open oven temperature sensor — a broken wire or a failed NTC probe. The cheapest oven co... |
| Bosch Oven/Range E5 Error Code: Causes & Fix | Bosch oven/range E5 is a board-to-board communication fault — the display works but the oven ignores it. Ribbon-cable... |
| Bosch Oven/Range E6 Error Code: Causes & Fix | Bosch oven/range E6 is a door-lock fault tied to self-clean — often a stripped worm gear in the motorized lock. Why t... |
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All Bosch Oven/range Error code guides#
Bosch Oven/Range E1 Error Code: Causes & Fix
Bosch oven/range E1 points to a control-board fault, often after a power surge. Why the oven goes dead, the one safe reset to try, and repair cost.
Bosch Oven/Range E2 Error Code: Causes & Fix
Bosch oven/range E2 is a safety-critical runaway-temperature code. Do not reset power — a welded relay is a fire risk. Why it trips and repair cost.
Bosch Oven/Range E3 Error Code: Causes & Fix
Bosch oven/range E3 means an open oven temperature sensor — a broken wire or a failed NTC probe. The cheapest oven code to fix; symptoms and cost.
Bosch Oven/Range E5 Error Code: Causes & Fix
Bosch oven/range E5 is a board-to-board communication fault — the display works but the oven ignores it. Ribbon-cable checks, the cheaper board, and cost.
Bosch Oven/Range E6 Error Code: Causes & Fix
Bosch oven/range E6 is a door-lock fault tied to self-clean — often a stripped worm gear in the motorized lock. Why the door jams, safety, and cost.
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