EN
8.3
Possible faults and solutions
8.3.1
Burner
m
CAUTION
For any potential anomalies of the burner and flame detector, see the manual for the installed appliance.
8.3.2
System
Type of malfunction or fault
Smell of unburnt products
The generator gets dirty quickly
The generator is at the operating
temperature and the heating system
is cold
The generator does not reach the
operating temperature
The generator locks out
Frequent intervention of the safety
valve
Smell of unburnt products
The generator gets dirty quickly
The generator is at the operating
temperature and the heating system
is cold
The generator does not reach the
operating temperature
The generator locks out
Frequent intervention of the safety
valve
Cause
Dispersion of fumes in the
environment
Burner poorly adjusted
Clogged flue pipe
Burner air path dirty
Presence of air in the system
Faulty pump
Minimum-temperature thermostat
faulty
Generator body dirty
Insufficient burner capacity
Boiler adjustment thermostat
Boiler adjustment thermostat
Lack of water
Heating system pressure
System expansion vessel
Dispersion of fumes in the
environment
Burner poorly adjusted
Clogged flue pipe
Burner air path dirty
Presence of air in the system
Faulty pump
Minimum-temperature thermostat
faulty
Generator body dirty
Insufficient burner capacity
Boiler adjustment thermostat
Boiler adjustment thermostat
Lack of water
Heating system pressure
System expansion vessel
Solution
- Check the cleanliness of the burner body
- Check the cleanliness and tightness of the smoke outlet and
generator
- Check the combustion quality
- Check the burner adjustment (fume analysis)
- Clean the fume duct
- Clean the burner air spiral
- Bleed the system
- Refer to the pump fault table
- Replace the minimum-temperature thermostat
- Clean the combustion chamber
- Check the condition of the nozzle (wear and cleanliness)
- check the pump pressure
- Verify the correct operation
- Check the set temperature
- Verify the correct operation
- Check the set temperature
- Check the wiring
- Check the position of sensor bulbs
- Check the bleed valve
- Check the pressure of the heating circuit
- Check the pressure on the pressure gauge
- Check the pressure reducer
- Check the efficiency of the valve
- Check the efficiency and the pre-charge
- Check the cleanliness of the burner body
- Check the cleanliness and tightness of the smoke outlet and
generator
- Check the combustion quality
- Check the burner adjustment (fume analysis)
- Clean the fume duct
- Clean the burner air spiral
- Bleed the system
- Refer to the pump fault table
- Replace the minimum-temperature thermostat
- Clean the combustion chamber
- Insufficient burner capacity
- Verify the correct operation
- Check the set temperature
- Verify the correct operation
- Check the set temperature
- Check the wiring
- Check the position of sensor bulbs
- Check the bleed valve
- Check the pressure of the heating circuit
- Check the pressure on the pressure gauge
- Check the pressure reducer
- Check the efficiency of the valve
- Check the efficiency and the pre-charge
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