Incorrect Operation - Ariston C Operating Instructions Manual

20. Incorrect Operaton
Fault
The boiler doesn't start
Red indicator alight
Noises in CH system
Radiators rise in temperature During
summer season
Cause
No gas, no water or no electricity
Air in the gas pipe
Room thermostat switched off
Air present in the CH system or
insufficient pressure
2 Port Valve for Central Heating stuck
open or demand for Central Heating from
Time Clock and Room Thermostat
If these solutions do not cure the fault, call a qualified professional
Solution
Check gas, water and electrical
supplies and fuses.
Follow the procedure in Section 14.2
(page 32)
Turn up the room thermostat
Wait for a few minutes
Press the reset button 28 (Fig. 107, page
55) the red led will go out and the boiler
will attempt to re-light.
If the red indicator lights too frequently,
please call your local service centre.
Purge the system of air and increase the
system pressure (Section 2 page 6)
Check the Central Heating 2 port valve,
time clock and room thermostat.
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