Troubleshooting - Riello MINI 17 LN NG Installation And User Manual

7 TROUBLESHOOTING

The appliance should be inspected by a qualified professional at least once a year to ensure it is operating correctly, prolong its life and make sure
safety is optimised. This would normally involve:
- removing any rust on the burners
- removing any build-up on the electrode
- cleaning the combustion chamber
- checking that the appliance switches on and off and operates correctly
- checking the fan is operating correctly
- checking the air pressure switch
- checking the flue gas exhaust and air intake pipes.
b
The following instructions are addressed solely to qualified technicians authorised to work on the appliance.
FAULT
Boiler does not switch on
No spark but fan operating
Burner does not come on
Burner does not switch off when water shut off
Repeated firing attempts
Burner flame inconsistent and appliance then
switches off
CAUSE
- No electrical supply
- No gas feeding
- Air in gas line
- Pressure switch fault
- Pressure switch tube not connected or cut
- Ignition/flame detection electrode broken
- Electrode cable cut off
- Circuit board does not detect flame
- Main solenoid valve does not open
- Ignition/flame detection electrode broken
- Electrode cable cut off
- Circuit board does not detect flame
- Main solenoid valve does not open
- For LPG models, check the gas supply pres-
sure
- Flow switch fault
- Specific inlet/suction line pipes not inserted
correctly
- Inlet/suction line pipe not installed correctly
SOLUTION
- Connect to the mains
- Turn the gas on
- Bleed the circuit
- Replace
- Check – replace – insert
- Replace
- Check – fix
- Check – fix
- Check – fix
- Check – replace
- Check – replace
- Check connector contacts and if necessary
replace the board
- Check and replace if necessary
- Adjust and if necessary replace the cylinder
pressure adjuster
- Replace
- Check and repair
- Check pipe seal
ENGLISH
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