E16
Termet
Internal PCB Error / Configuration Fault
Boiler shows E16, no heating, pump may run continuously, sometimes after power disturbances.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Corrupted PCB firmware, Internal PCB component failure, Incorrect parameter settings for Termet boiler model, Voltage spikes or poor supply quality
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing the electronics compartment.
User checks:
- Switch the boiler off at the mains for 5 minutes, then power it back on to perform a soft reset.
- If E16 reappears immediately, contact an authorised Termet service centre.
Technician checks:
- Verify supply voltage and earthing quality.
- Check PCB for visible damage, burnt components, or moisture.
- Reload or reset configuration parameters according to the Termet service manual if possible.
- Replace the main control PCB if internal error cannot be cleared.
PCB replacement may require parameter programming specific to the boiler model and gas type.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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