Ariston 47-116-15 installation instructions ∆ P 1.2 mbar

C
IS THE	NO
AIR PRESSURE SWITCH
ACTIVATED?
YES	CHECK	∆ P ∅	1.2 mbar 1 - Check A.P. switch cable
	∆ P ON TEST
	PRESSURE			2 - Check/replace A.P. switch
				3 - Check/replace P.C.B.
	INTAKE
	≤			1 - Check exhaust discharge
	∆ P 1.2 mbar			2 - Check venturi & pipes
				3 - Check fan efficiency
				1 - Check/replace ignition
IS FLUE				electrode
	NO			2 - Check ignition cable
DISCHARGE
				3 - Check spark generator
NORMAL?
				4 - Check ignition electrode
				cable
YES				5 - Check/replace P.C.B.
				1 - Check power supply of
				gas valve
IS THE BURNER	NO			2 - Check/replace P.C.B.
				3 - Check efficiency of
ALIGHT?
				gas valve
YES				4 - Replace gas valve
HAS THE				1 - Check if flame strikes
				detection electrode
BOILER SAFETY	YES			2 - Check soft-light gas
SHUTDOWN BEEN				pressure
ACTIVATED?				3 - Check/replace detection
				electrode
NO				4 - Check/replace P.C.B.
D				HAS THE
		NO		BOILER SAFETY
				SHUTDOWN BEEN
				ACTIVATED?
				YES
				Shutdown L.E.D. off
				fan restarts
				FC004Ad
B063				21