Bosch Stove ER3 Error: Oven Overheating
What Does Bosch Stove Error Code Er3 Mean? Error code Er3 is an oven overheat alert. Turn off at the breaker immediately. Do not open the oven door while it’s overheated. Professional repair is required before using the oven section again.
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Do not use the oven until repaired. Overheating is a fire risk.
Can I reset the code?
No. Er3 indicates a hardware fault requiring repair.
When to stop immediately?
Stop if you notice: Immediately, Burning smell.
Symptoms You May Notice
Oven exceeds set temperature significantly
The oven interior is much hotter than the temperature you set.
Burning smell from oven
A scorching or burning odor during cooking.
Possible Causes
Temperature sensor failure
The sensor reads lower than actual, causing the oven to overshoot.
Requires ProfessionalHeating relay stuck
A relay is stuck on, providing continuous heat.
Requires ProfessionalSafe Checks You Can Do
-
1
Turn off immediately
Turn off at the breaker. Keep oven door closed while it cools.
Ventilate the kitchen.
When to Call a Professional
Contact a qualified technician if:
- Sensor reads incorrectly
- Relay stuck closed
- Board has thermal damage
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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