Ariston micro SYSTEM 21 RFFI Manual del usuario - Página 13

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Should the boiler fail to ignite a second

time, check that the external gas cock is

open. If the problem persists, contact an

Authorised Service Centre.

Shutdown due to overheating

In the event that the safety limit is exceeded

for the temperature of the water in the

boiler's primary exchanger, the thermostat

shuts off the boiler and the red L.E.D. "F"

illuminates.

To remedy this situation, wait a few minutes

to allow the exchanger to cool down, then

press and release the reset button "E".

If this situation occurs frequently, contact an

Authorised Service Centre.

Shutdown due to insufficient

system pressure

In the event of insufficient water pressure in

the heating system, a safety device will

shutdown the boiler. Check the system

pressure on the pressure gauge "J" and if

it is less than 0.4 bar refill the system to 1.5

bar

(consult

installer for checking

and

refilling

system).

Once

system pressure is at

your

the