36
REMOVING/INSTALLING THE HEATING
ELEMENTS
Set-up conditions
•
Boiler shut down using the main switch
•
Power cable removed
•
Boiler cooled down (if it was in operation)
•
Top panel removed (see
“Removing and Installing the ac-
cess Panels” on page 34
).
Removal Procedure
1. Release four M10 nuts (
1
). Retain for reinstallation.
2. Remove two holders (
2
). Retain for reinstallation.
3. Release the center nut (
3
) of the heating element (
4
) to
be removed.
4. Remove heating element (
4
). Discard according to local
regulations.
Installation Procedure
1. Install the new heating element (
4
) in position. Do not
tighten the center nut (
3
) at this stage.
2. Install two holders (
2
) and tighten with two retained nuts (
1
).
3. Tighten the center nut (
3
) of the heating element (
4
).
Follow-on Task(s)
1. Check that all nuts are tight.
2. Reinstall the top panel. See
“Removing and Installing the
access Panels” on page 34
)..
3. Restart the boiler as required, refer to
“Starting Up the
Appliance” on page 26
.
RESETTING THE HIGH TEMP LIMIT SWITCH
Set-up conditions
•
Boiler shut down through the main power switch
•
External power supply isolated (through the external elec-
trical box)
•
Boiler cooled down to < 60°C (or reset is not possible)
Procedure
1. Open the left access panel. Refer to
“Removing and In-
stalling the access Panels” on page 34
.
2. Push on the safety thermostat button (
1
) to reset. A “click”
sound should be heard.
In case no “click” sound is heard, the safety device is
not the cause of the shut-off. Troubleshooting should
be performed by a qualified service engineer.
3. Reinstall the left access panel, refer to
“Removing and
Installing the access Panels” on page 34
..
Follow-on task(s)
1. Connect the power cable to the mains and to the boiler.
2. Activate electrical power through the external electrical
box, as required.
3. Turn the boiler on using the main power switch. Refer to
“Starting Up the Appliance” on page 26.
4. Check that the boiler restarts correctly and that the error
message has disappeared from the screen.
1
3
2
4
17
EN
Maintenance
