Fault
Cause
Remedy
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
- 62
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MAINTENANCE