- 61
-
MAINTENANCE
Disassembling and replacing the electrodes
WaRninGs
•
When disassembling the electrodes, pay the utmost
attention not to damage the seals (18) and (19). Replace
them if damaged.
- Loosen the retaining screws of the electrode unit (20), slide it out
and check that it is in a good condition. it is advisable to replace
it considering the frequent ignitions of the device.
- Loosen the retaining screws of the probe (21), remove it and
check that it is in a good condition. Replace it if necessary.
20
21
18
19
OPERATING FAILURES
Any failures or faults of the device are shown on the display as indicated in the table on page 59.
Fault
cause
solution
Gas smell
- Gas supply circuit
- Make sure that the connections are tight
and that the pressure measurement
points are closed
Smell of unburnt products
- Flue gas circuit
- Check for:
- Tightness of connections
- Absence of obstructions
- Combustion quality
Irregular combustion
- Pressure of supply gas
- Check setting
- Burner and/or exchanger fouled
- Check conditions
- Intake and/or vent ducts fouled
- Check conditions
- Incorrect fan rpm
- Check fan rpm (see page 47)
Ignition delays with pulses to the burner - Adjust ignition power more accurately - Change valve gas setting
The generator fails to reach the
temperature
- Generator body fouled
- Clean the combustion chamber
- Insufficient burner flow rate
- Check burner setting
however, other faults of the device/system assembly can occur, as given below.