Bertazzoni Cooktops ER03 Error: Moisture on touch controls
What Does ER03 Mean on a Bertazzoni Induction Cooktop? ER03 on a Bertazzoni induction cooktop is a moisture protection lockout. The capacitive touch control strip — the row of sensors along the front of the Vetroceramic glass that you tap to select zones and power levels — has detected a conductive film (water, cleaning spray, […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. ER03 caused by moisture is safe to resolve at home. If ER03 persists after thorough drying and a power cycle, a faulty touch interface board requires professional replacement.
Can I reset the code?
Yes. Removing the moisture source, drying the surface, and powering the cooktop back on clears ER03 caused by liquid contamination.
When to stop immediately?
Stop if you notice: ER03 appears on a completely dry cooktop with no recent cleaning or spills, Error recurs every time the cooktop is used regardless of surface condition.
Symptoms You May Notice
Touch-control cooktop locks out all zones unexpectedly during or shortly after cleaning or a boil-over
Spilled liquid, steam condensate, or residual cleaning solution resting on the capacitive touch strip confuses the sensor logic and triggers the moisture-protection lockout, preventing any zone from being activated.
Control panel buttons become unresponsive or trigger zones randomly without being touched
A thin water film across multiple touch pads causes phantom activations and erratic zone behaviour before the ER03 lockout fully engages.
Possible Causes
Liquid pooled on the control glass strip
Spilled liquid, condensate from a boiling pot, or residual cleaning solution left directly over the capacitive touch controls confuses the sensor logic and triggers the moisture-protection lockout.
DIY PossibleFaulty touch interface PCB
If ER03 appears without any visible moisture and after thorough drying, a failed capacitive sensor trace or component on the touch interface board is generating a spurious moisture signal.
Requires ProfessionalSafe Checks You Can Do
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1
Dry the control strip thoroughly
Power off the cooktop. Wipe the entire glass surface — especially the touch-control strip at the front — with a completely dry microfibre cloth. Allow 10 minutes before powering back on.
Even an invisible water film from steam or a slightly damp cloth can trigger ER03. Ensure the cloth is fully dry, not just damp, and wipe in overlapping passes.
When to Call a Professional
Contact a qualified technician if:
- Touch sensor flex cable shows moisture ingress or corrosion on inspection
- Control board surface touch IC fails continuity scan on all pads
- ER03 present even after complete disassembly, drying, and reassembly
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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