To Next PageTo Next PageWhy does my Baxi Boiler show incorrect power supply frequency?
If your Baxi Boiler indicates an incorrect power supply frequency, check whether the issue is due to causes outside the boiler. If so, contact the power supply company.
How to fix a Baxi NUVOLA DUO-TEC GA Boiler with no flame?
If your Baxi Boiler is showing no flame, check that the flame sensing electrode is in good condition and correctly positioned. Also, check the wire is uninterrupted and makes good contact with the flame sensing electrode and the ignition switch.
What to do if the pressure is too low in my Baxi NUVOLA DUO-TEC GA Boiler?
If the pressure in your Baxi Boiler's hydraulic circuit is too low, and it's less than 0.5 bar, fill the system. Also, check that the hydraulic pressure switch works correctly.
Why does my Baxi Boiler lose flame at ignition?
If you are experiencing a loss of flame at ignition with your Baxi Boiler, check that the flame sensing electrode is in good condition and correctly positioned. Also, check the wire is uninterrupted and makes good contact with the flame sensing electrode and the ignition switch. Check for any recirculation of fumes.
What to do if the safety thermostat tripped on my Baxi NUVOLA DUO-TEC GA Boiler?
If the safety thermostat in your Baxi Boiler has tripped due to overtemperature, which might be caused by a blocked pump or air in the heating circuit, check the pump operation by unscrewing the front cap and releasing the pump impeller with a screwdriver. Also, check the pump power input wiring. Ensure the limit thermostat is undamaged and replace it if needed. Finally, verify the continuity of the limit thermostat wiring.
How to troubleshoot a fan fault on a Baxi Boiler?
If your Baxi Boiler fan is faulty, check the fan's operation and ensure its power supply wiring is connected to the electronic board.
What to do if my Baxi NUVOLA DUO-TEC GA Boiler has fault in system filling phase?
If your Baxi Boiler displays 'Fault in system filling phase', check the filling tap.
What to do if my Baxi NUVOLA DUO-TEC GA Boiler input voltage is too low?
If your Baxi Boiler displays 'Input voltage too low', and the supply voltage is less than 175V, check whether the power supply reductions are due to reasons other than the boiler. If so, contact the electricity provider.
What to do if my Baxi Boiler has fumes fault during calibration?
If your Baxi Boiler experiences a fumes fault during calibration, which is likely due to fumes recirculation, check for any recirculation of fumes. Activate the automatic calibration function described in the paragraph YEARLY MAINTENANCE – REPLACING COMPONENTS.
What causes fumes NTC to trip in Baxi NUVOLA DUO-TEC GA?
If your Baxi Boiler shows fumes NTC tripped due to overtemperature, check the heat exchange of the water/ fumes exchanger for insufficient circulation or presence of scale. Also, check the fumes NTC probe.
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