TROUBLESHOOTING
Appliance malfunctions/faults are indicated on the display as shown in the table on page 49.
Fault Cause Remedy
Smell of gas - Gas supply circuit
- Check sealing efficiency of the joints
and closure of the pressure points
Smell of uncombusted fuel - Flue circuit
- Check:
- sealing of joints
- for possible obstructions
- combustion quality
Irregular combustion
- Supply gas pressure - Check settings
- Burner and/or exchanger dirty - Check conditions
- Intake and/or exhaust lines dirty - Check conditions
- Incorrect blower RPM
- Check the blower RPM (see page
45).
Delayed ignition with pulsing on burner
- More precise tuning of ignition power
required
- Modify settings
The generator does not reach the set
temperature
- Generator heat exchanger dirty - Clean the combustion chamber
- Insufficient burner flow rate - Check burner settings
The generator reaches the set
temperature but the heating systems
are cool
- Presence of air in the system - Purge the system
- System pump
- Unblock the pump
- Replace the pump
Frequent intervention of the system
safety valve
- System safety valve - Check setting or efficiency
- System pressure
- Check filling pressure
- Check pressure reducer
- Check filling valve
- System expansion vessel - Check efficiency
System pump/s do not work
- Pump blocked, electrical connections
- Check pump and connections
- Room thermostat
- Check room thermostat and
connections
Storage tank pump does not work
- Pump blocked, electrical connections
- Check the pump
- Check the electrical connection
between the pump and control panel
- Storage tank thermostat
- Check efficiency and position of the
thermostat
However, other anomalies may occur on the appliance/system, and these are listed below.
- 61 -
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