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1.4
Boiler shut-down
The boiler shuts down automatically if a malfunction occurs.
To determine the possible causes of malfunction (see Troubleshooting on page 46).
Below is a list of shut-down types and the procedure to follow in each case.
1.4.1
Burner shut-down
Fault code E01 is displayed flashing on the display in the event of burner shut-down due to missing flame.
If this happens, proceed as follows:
• check that the gas cock is open and light a kitchen gas ring for example to check the gas supply;
• once having checked if the fuel is available, press the Reset button to restore burner operation: if, after two starting attempts, the boiler still
fails to start and enters the shut-down mode again, contact a service centre or qualified personnel for maintenance.
WARNING
If the burner shuts down frequently, there is a recurring malfunction, so contact a service centre or a qualified service engineer.
1.4.2
Shut-down due to overheating
Fault code E02 is shown on the LCD display in the event of flow water temperature overheating. Contact a service centre or a qualified service
engineer to carry out the maintenance.
1.4.3
Shut-down due to incorrect air/flue gas system draught
The boiler is equipped with a safety device for flue gas exhaustion check.
Should an air/flue gas system malfunction occur, the control device will shut-down the boiler by interrupting the gas supply to the boiler and
the LCD will display the E03 code.
To resume the operation press Reset (see Fig. 1 Control panel on page 8).
In case of repeated stops, it is necessary to have the boiler and the air intake/flue gas venting ducts checked by a service centre or a qualified
service engineer.
1.4.4
Shut-down due to low water pressure
Fault code E04 is displayed on the LCD display in the event of shut-down triggered by the water pressure switch.
Fill the system by working on filler cock (A) (see Fig. 2 Filler cock).
Water pressure must be 1÷1.3 bars while the boiler is cold.
In order to restore water pressure, proceed as follows:
• Turn the filler cock anticlockwise to allow water to enter the boiler;
• Keep the filler cock open until the pressure gauge shows a value of 1÷1.3 bar;
• Turn cock clockwise to close it.
Should boiler shuts down frequently occur it means there is boiler malfunction in progress. Contact qualified personnel or an authorised
service centre for maintenance.
DANGER
Make sure you close filler cock (A) carefully after filling procedure is completed.
If you do not, when the pressure increases, the safety valve may activate and discharge water.
Fig. 2 Filler cock
14
Instructions for the user
A
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