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24-SAFETY DEVICES AND ALARMS
Technical Dept. - All rights reserved - Reproduction prohibited
MESSAGE ON DISPLAY TYPE OF PROBLEM SOLUTION
A18 Water safety thermostat tripped (SIC2)
Water temperature too high.
Check proper heat dissipation of the system:
closed system valves
oversized plant
If the alarm persists, contact the service centre.
N.B.: the brazier opens to prevent further temperature
rise.
A19 Water probe failure
Possible fault in the safety component.
Contact an authorised service centre to have the
component checked and, if needed, replace the
component.
A20 Auxiliary probe failure
Possible component fault.
Check that the probe inserted in the system respects
the characteristics specied in the instructions (see
external probe).
Contact an authorised service centre to have the
component checked and, if needed, replace the
component.
A21 Safety pressure switches tripped (SIC3)
Air pressure switch Draught issue.
Check and if necessary clean the smoke duct.
Water pressure switch System water pressure too low.
Check the pressure of the hydraulic system.
A22 Room probe failure
Possible fault in the safety component. Contact an
authorised service centre to have the component
checked and, if needed, replace the component.
A23 Brazier not closed Possible obstruction in the brazier. Clean.
If the problem persists, contact a service centre..
A24 Pump blocked
Possible component fault.
Contact an authorised service centre to have the
component checked and, if needed, replace the
component.
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