Supplied By www.heating spares.co Tel. 0161 620 6677
12
Incorrects functions is signalled by leds (rep 19) display flashing correspond with chart below.
INCORRECT FUNCTION
CODE
FAULT
INFORMATION
30 40 50 60 70 80
m
m
m
m
m
l
Overheating safety feature.
m
m
m
m
l
l
No flame detection.
m
m
m
l m
l
Antifrost mode on (pump in operation).
m
m
m
l
l m
Antifrost mode on (burner and pump in operation).
m
m
m
l
l
l
lack of water circulation.
m
m
l m
m
m
Primary water circulation defect
m
m
l m
l
l
Central heating inlet thermistor faulty (open circuit).
m
m
l
l m
m
Central heating inlet thermistor faulty (short circuit).
m
m
l
l m
l
Central heating oulet thermistor faulty (open circuit).
m
m
l
l
l m
Central heating oulet thermistor faulty (short circuit).
m
l m
m
l m
Firing problem
m
l m
l m
m
Wiring problem (or fuse 1,25 A)
m
l m
l m
l
Fan on but does not activate air pressure switch.
m
l m
l
l m
Fan off but air pressure switch fails to return to off position.
m
l
l
l
l
l
Communication defect with the display PCB.
l m
m
m
m
m
Communication defect with the main PCB.
m
= LED off
l
= LED blinking
