Ariston 41-116-04 installation instructions Mbar

B

IS THE

CHECK

∆

P

0.5 mbar

1 - CHECK AIR PRESSURE

SWITCH CABLE

NO

∆

2 - CHECK/REPLACE AIR

AIR PRESSURE SWITCH

P ON PRESSURE

PRESSURE SWITCH

ACTIVATED?

TEST POINT

3 - CHECK/REPLACE P.C.B.

(CBM2)

YES

∆

≤

P 0.5 mbar

1 - CHECK EXHAUST DISCHARGE

2 - CHECK VENTURI AND TUBES

3 - CHECK THE FAN EFFICIENCY

4 - REPLACE FAN

DOES

1 - CHECK/REPLACE IGNITION

ELECTRODES

THE SPARK

NO

2 - CHECK THE CABLES

5 - CHECK/REPLACE P.C.B. (CBM2)

3 - CHECK SPARK GENERATOR

SEQUENCE

4 - CHECK IGNITION ELECTRODE

START?

CABLES

YES

1 - CHECK POWER SUPPLY TO

IS THE BURNER

NO

THE GAS VALVE

2 - CHECK OPERATION OF THE

4 - CHECK/REPLACE P.C.B. (CBM2)

ALIGHT?

GAS VALVE

3 - REPLACE THE GAS VALVE

YES

HAS THE

YES

BOILER SAFETY

PRESS THE RESET

SHUTDOWN BEEN

BUTTON

ACTIVATED?

NO

1 - CHECK IF THE FLAME

STRIKES THE DETECTION

BOILER

ELECTRODE

NO

2 - CHECK THE SOFT-LIGHT

4 - CHECK/REPLACE

WORKING?

GAS PRESSURE

P.C.B. (CBM2)

3 - CHECK/REPLACE DETECTION

ELECTRODE

	YES
	NORMAL
	OPERATION
IS	1	FAULT LIST		POSSIBLE CAUSES
THERE STILL		NOISEY OPERATION	- MAIN HEAT EXCHANGER FAULTY OR BLOCKED
A PROBLEM?	YES			WITH LIME-SCALEDEPOSITS
			-	LOW HEATING SYSTEM WATER PRESSURE
NO			- CHECK GAS PRESSURES
			- CHECK HEATING THERMOSTAT
			- CHECK FAN
			- CHECK PUMP
NORMAL	2	DECREASE/INCREASE OF HEATING CIRCUIT	- CHECK FOR LEAKS ON THE HEATING CIRCUIT
		PRESSURE	-	FAULTY FILLING LOOP
OPERATION			-	FAULTY EXPANSION VESSEL
	3 REPEATED SHUTDOWNS		- FAULTY DETECTION ELECTRODES
			- CHECK GAS PRESSURES
			- CHECK FLAME DETECTION ELECTRICAL CIRCUIT
	4	REPEATED OPERATION OF SAFETY THERMOSTAT	- FAULTY HEATING THERMOSTAT
			- FAULTY OVERHEAT THERMOSTAT
			-	PRESENCE OF AIR IN THE HEATING CIRCUIT
			- CHECK BURNER PRESSURES
			- CHECK EXCHANGER FLUEWAY
	5 INSUFFICIENT RADIATOR TEMPERATURE		-	CHECK HEATING THERMOSTAT
			-	CHECK BY-PASS	FC002Ac
			- CHECK GAS PRESSURE

18 B063