Bosch Oven E005 — Power Supply / Line Voltage Fault
Bosch Oven · Error code E005
What E005 Means
The control has detected incoming voltage outside the expected 208–240 V range, missing a leg of 240 V, or wiring miswired. The oven disables heat to protect elements and the control.
Symptoms
- Display works but oven won't heat
- Lights and clock function but cooking fails
- E005 immediately at power-up
- Breaker trips during preheat
Common Causes
Loose lug at the breaker or oven junction box delivers only 120 V.
Hot-to-hot vs hot-to-neutral swap on a 3-wire vs 4-wire conversion.
One pole of the double-pole breaker is dead.
Utility delivering below 200 V.
Burned terminal block at the rear of the oven.
How to Fix It
- Power off at the breaker.
- Measure both legs to neutral and across hot-to-hot at the oven junction box — expect 240 V (208 V on some commercial supplies).
- Inspect the breaker and reseat it; replace if one pole reads dead.
- Confirm the oven is wired per the install diagram on the chassis — 3-wire vs 4-wire matters.
- Tighten all lugs at the junction box; check for burned insulation.
- If supply is correct and code persists, replace the power inlet/terminal block; last resort, replace the main control.
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.
More Bosch Oven Codes
Verified against manufacturer documentation: genuinereplacementparts.com
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.