ERR3 indicates a temperature sensor malfunction or heating element failure in your Asko oven. This error prevents the oven from operating safely and requires diagnostic attention to restore normal functionality.
• Oven fails to heat or reaches incorrect temperatures
• Display shows ERR3 code and oven locks out
• Heating element does not glow or activate
• Temperature fluctuates wildly during cooking
• Oven beeps repeatedly when attempting to cook
• Unable to select cooking modes or temperature settings
• Interior light may work but heating functions remain disabled
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Possible Causes
• Faulty temperature sensor (RTD probe) providing incorrect readings to control board
• Broken or disconnected heating element (bake or broil element)
• Damaged wiring harness between sensor and control board
• Control board malfunction preventing proper temperature regulation
• Thermal overload protection triggered due to internal temperature spike
• Failed door latch safety switch preventing operation
• Power supply irregularities affecting sensor calibration
• Mineral buildup on temperature sensor from hard water deposits
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Safety Checks You Can Do
• Unplug the oven from the electrical outlet for 60 seconds, then plug back in to reset the control board
• Verify the oven door is completely closed and latches securely
• Check that you are selecting the correct cooking mode (bake vs. broil) before entering temperature
• Allow the oven to cool for 30 minutes if it recently shut down due to overheating
• Ensure nothing is blocking the oven vents—remove any foil, liners, or items covering interior vents
• Confirm your home's electrical outlet is functioning properly by plugging in another appliance
• Review your oven's user manual for USA-specific reset procedures for your model
• If ERR3 persists after these steps, contact an authorized Asko service technician for sensor or heating element replacement
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NOTE!
If the error code persists, call to schedule your service
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