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SHUTDOWN DUE TO INSUFFICIENT

WATER CIRCULATION

This anomaly is indicated by the red "D" L.E.D.

One of the possible causes of this shutdown situation

could be the lack of water in the boiler or water

circulation failure in the primary heating circuit.

Check the system pressure on the pressure gauge

"O" and, if it is less than 0.5 bar, consult your installer

for checking and refilling the system.

Then reset the unit by turning the boiler off and then

back on with the On/Off button "L".

If this situation persists, contact one of our Authorised

Service Centres.

The "C" Summer/Winter/Flue Test selector knob can be

set to <

heating circuit for the purpose of analysing the fumes

produced by combustion.

To access this mode, open a water tap or taps so that the

flow rate is no less than 8 litres per minute.

Then press the "C" selector knob in and turn it from <

the <

WARNING!

The flue test feature eliminates the slow-light feature.

This mode must only be selected by a qualified service engineer.

FLUE TEST FEATURE

(only for authorised personnel)

> to bypass temperature adjustment on the

> or <

> to

B003