TABLE 1. CODES NORMAL OPERATING CONDITION
displaycode
display code
service-code
operating condition of the boiler
Start-up of the boiler
Restart of boiler after reset
Check unit data at start-up
Check unit data
Anti fast-cycle program operative
Waiting for switching of three-way valve
Standby: no heat demand
Ignition
Purging for 15 sec.
Central heating water temperature is higher than set; boiler is waiting
Code remains briefly; boiler is adapting
Boiler is operative for central heating
Boiler is operative for hot water
TABLE 2. MALFUNCTION CODES WITH INOPERATIVE BOILER
cause of the malfunction
Central heating water temperature or flow is not correct
Temperature safety device is switched on
Burner does not ignite or has failed
Control panel possibly defective
Defective cable connection
IRT 30 Room Thermostat possibly defective
Control panel possibly defective
Power supply malfunction
BLANK
The manufacturer of the central heating boiler accepts no liability for damage caused by the
lack of observation of the user's instructions.
705.276 [b.w.] 12/4/00 13:26 Pagina 2
