11 Maintenance
11.1 General
We recommend having the boiler inspected and serviced at regular
intervals.
Caution
Do not neglect to service the boiler. Contact a qualified
professional or take out a maintenance contract for the obligatory
annual servicing of the boiler.
Failure to service the appliance voids the warranty.
Danger of electric shock
Before service work is started, the boiler has to be de-energised
and secured from accidentally being switched back on.
Caution
Have an inspection carried out and the flues swept at least once a
year or more, depending on the regulations in force in your
country.
Caution
Only qualified professionals are authorised to carry out
maintenance work on the boiler and the heating system.
Caution
After maintenance or repair work, check the entire heating system
to ensure that there are no leaks.
Caution
Only genuine spare parts may be used.
11.2 Standard inspection and maintenance operations
11.2.1 Performing the annual service
1. Check the outward appearance and tightness of the gaskets on the
gas circuit and the combustion circuit.
2. Check for any impurities inside the combustion chamber. Use a
vacuum cleaner for any cleaning work.
3. Check the condition of the insulation in the door and at the bottom of
the combustion chamber and the condition of the gaskets on the
combustion chamber door.
4. Check the condition and position of the ignition and flame detection
electrodes, as well as the condition of the burner and its retaining
device.
5. Check for any impurities inside the siphon.
6. Dry up as much as possible any water that may have stagnated in the
bottom of the boiler as the result of a maintenance operation.
7. Check that there are no obstructions in the discharge and air intake
pipes.
8. Check that the fan is working correctly.
9. Check the combustion and the correct calibration of the gas valve.
10. Check the pressure in the heating system.
11. Check the pressure in the expansion vessel.
11.2.2 Removing the burner
POWER HT+ 1.130 and POWER HT+ 1.150
1. Switch off the mains supply to the boiler.
2. Close the gas inlet valve.
3. Close the valves on the heating circuits.
11 Maintenance
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