Error Code
Bertazzoni Wall Ovens Error Code Er02
Er02 indicates a temperature sensor malfunction or communication error between the oven's control board and the temperature monitoring system. This error prevents the oven from accurately reading internal temperatures and halts cooking operations for safety.
Quick Diagnostics
Signs
6 identified
Possible Causes
8 listed
Safety Checks
11 steps
If unsure, stop using the appliance and contact a certified technician immediately.
What you notice
Signs
6
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01• Oven fails to heat or reach the set temperature
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02• Cooking cycle stops unexpectedly and displays Er02 on the control panel
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03• Unable to select any cooking modes or preheat settings
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04• Control panel may become unresponsive
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05• Oven interior remains cold despite attempts to operate
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06• Error code persists even after closing and reopening the oven door
Why it happens
Possible Causes
8
A
• Faulty temperature sensor (RTD or thermistor) inside the oven cavity
B
• Loose or disconnected wiring between the sensor and control board
C
• Damaged or corroded sensor connector terminals
D
• Control board malfunction or software glitch
E
• Power supply voltage fluctuations affecting 240V circuit stability in USA homes
F
• Moisture or food debris on sensor contacts
G
• Failed control panel circuit or communication line
H
• Manufacturing defect in the temperature monitoring circuit specific to certain USA production batches
DIY — No disassembly
Safety Checks You Can Do
11
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1• Turn off power at the circuit breaker supplying the wall oven for 60 seconds, then switch back on to reset the system
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2• Verify the dedicated 240V circuit breaker is in the ON position and has not tripped
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3• Ensure the oven's power cord is fully connected to the wall outlet or hardwiring terminal
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4• Allow the oven to cool completely to room temperature before attempting operation again
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5• Open the oven door and visually inspect the interior for any food debris, spills, or moisture that may affect the sensor
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6• Wipe down the oven interior with a dry cloth if you notice dampness
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7• Check that all oven racks are properly seated in their slots and not blocking the sensor area
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8• Review your control panel settings to ensure no lockout feature is enabled
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9• Attempt a simple cooking function at a low temperature (e.g., 250°F) to see if the error reoccurs
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10• Unplug the oven from the wall outlet for 5 minutes if hardwired, then restore power
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11• If the error persists after these steps, contact a certified Bertazzoni service technician in the USA for professional diagnosis and sensor replacement
Always unplug the appliance before performing any physical check. These are visual/external checks only.
Still having trouble?
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