Bosch · Oven Critical

E115 — Overtemperature Shutdown

Bosch's official US oven/microwave error-code page documents only E11 (touch keys/condensation) plus generic 'E and a number' catch-alls that instruct disconnecting power and calling Bosch support. A specific 'E115' is not separately documented. The 'overtemperature shutdown' explanation below is not confirmed on Bosch's US consumer page — verify against your model's manual.

Keep using it?
No — service first
DIY difficulty
Moderate

How to fix it

  1. Power off at the breaker and let the oven fully cool — at least 1 hour.
  2. Verify the convection / cooling fan spins freely and runs on the next power-up.
  3. Inspect the door gasket for tears or compression set; replace if flat.
  4. Check installation clearances against the spec sheet for that model.
  5. If E115 returns immediately, suspect a welded relay on the main control — replace the board.
  6. If it only triggers at high temps, test the temperature sensor (PT500 ≈ 500 Ω cold) and replace if drifted.

Why it happens

Typical signs: Oven shuts off mid-cook · Strong heat in cabinet area · Cooling fan running long after shutdown · E115 or F115 on display

  • Cooling fan failed or blocked Convection cabinet fan not exhausting; cavity heat soaks the controls.
  • Welded bake or broil relay Element stays energized after the control commands off.
  • Drifted temperature sensor PT500 reading low so the control overdrives the elements.
  • Door not sealing Heat escapes onto the control panel and trips overtemp limit.
  • Insufficient install clearance Cabinet cutout undersized; trapped heat triggers limit.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Bosch oven cooling fan motor Common replacement
    Amazon →
  • Bosch oven door gasket Common replacement
    Amazon →
  • Bosch oven main control / relay board Common replacement
    Amazon →

More Bosch oven codes

E005 E005 — Power Supply / Line Voltage Fault E011 E011 — Continuous Key Press Detected E0111 E0111 — Stuck Control Button E0511 E0511 — Cooling Fan Fault E0527 E0527 — Door Switch Fault E0531 E0531 — Convection Fan Fault

All Bosch codes → All oven codes →

Frequently asked questions

What does the E115 code mean on a Bosch oven?

Bosch's official US oven/microwave error-code page documents only E11 (touch keys/condensation) plus generic 'E and a number' catch-alls that instruct disconnecting power and calling Bosch support. A specific 'E115' is not separately documented. The 'overtemperature shutdown' explanation below is not confirmed on Bosch's US consumer page — verify against your model's manual.

What causes the E115 code on a Bosch oven?

Cooling fan failed or blocked: Convection cabinet fan not exhausting; cavity heat soaks the controls. Welded bake or broil relay: Element stays energized after the control commands off. Drifted temperature sensor: PT500 reading low so the control overdrives the elements.

Is it safe to keep using a Bosch oven with a E115 error?

No — service first. This is rated a critical-severity fault.

How do I fix E115 on a Bosch oven?

Power off at the breaker and let the oven fully cool — at least 1 hour. Verify the convection / cooling fan spins freely and runs on the next power-up. Inspect the door gasket for tears or compression set; replace if flat.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.