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BOILER MAINTENANCE
Descale the boiler at regular intervals, according to the
hardness of the mains water and the number of selec-
tions you have performed.
technical personnel only.
To descale, remove the boiler from the machine.
To descale, use biodegradable, atoxic and non-aggres-
sive products only.
Rinse abundantly before re-assembling the parts.
- Electrical contacts (terminals, faston, etc.) are perfectly
dried and well-tightened;
- Safety and anti-boil thermostats are properly positioned
and connected;
- Water connections are correct.
Important!!!
If the boiler heating system should work without water for
any reason whatsoever, check the proper operation of
the boiler temperature probe before setting the machine
at work.
If dry heating should continue until the safety thermostat
trips, the boiler temperature probe will be irreversibly
damaged and must be necessarily replaced.
disassembling pumps
Pumps are secured to the cover by means of a bayonet
connection.
To disassemble them:
- Detach the connector
- Turn the pump for forcing slightly to overcome the snap
lock.
The direction of rotation is alternatively clockwise and
counterclockwise.
.
3 4
1
2
5 6
7
4
8
Fig. 43
1- Anti-boil thermostats (manually reset)
2- “Overflow” tube
3- Safety thermostat (manually reset)
4- Delivery pumps
5- Boiler heating element terminals
6- Electric boiler connectors
7- Bayonet connection
8- Delivery pump seat
9-
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