ERR12 indicates a temperature sensor malfunction or heating element failure in your Asko oven. This error prevents the oven from operating safely as it cannot accurately monitor or maintain cooking temperatures.
• Oven fails to heat or heats inconsistently
• Display shows ERR12 and oven locks out from operation
• Cooking results are uneven or undercooked
• Oven may cycle on and off repeatedly
• Preheat function does not complete
• Temperature displayed does not match set temperature
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Possible Causes
• Faulty temperature sensor (RTD or thermistor) in the heating chamber
• Broken or damaged heating element (upper, lower, or convection element)
• Loose or disconnected wiring to temperature sensor
• Control board malfunction preventing temperature signal recognition
• Thermal fuse has blown from overheating
• Door latch not properly engaged, triggering safety lockout
• Buildup of food debris or grease affecting sensor accuracy
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Safety Checks You Can Do
• Power cycle the oven: Unplug from the electrical outlet for 60 seconds, then plug back in to reset the control board
• Verify the oven door is fully closed and latches completely with an audible click
• Confirm the correct cooking mode is selected (bake, convection, broil, etc.)
• Allow the oven to cool for 30 minutes if it was recently used, as overheating protection may have triggered
• Check that aluminum foil or oven liners are not blocking air vents or sensor areas
• Ensure the oven has adequate clearance and proper ventilation around the unit
• Inspect the oven interior for visible food debris or grease buildup and clean carefully if present
• Verify your home's electrical outlet is functioning by plugging in another appliance
• Do not attempt to disassemble the oven door, heating elements, or access the control board yourself
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NOTE!
If the error code persists, call to schedule your service
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