Ariston 47-116-15 Fault Finding, Finding diagrams described in this chapter

2.FAULT FINDING

2.1	FAULT FINDING GUIDE	It is possible to detect and correct any defect by using the standard fault
	(FLOW-CHARTS)	finding diagrams described in this chapter.

PRELIMARY CHECKS

MAKE SURE THAT:

1 - There is sufficient water in the system

2 - The gas is turned on

3 - The electrical supply is

turned on

TURN ON THE ON/OFF

SWITCH

IS

THE POWER

NO

L.E.D.

ON?

1 - Check the fuses

YES

2 - Check the power supply

cable, plug and outlet

3 - Check/replace the power

supply to the P.C.B.

SUMMERESTAT E

POSTION

WINTER

OF THE

SELECTOR

Comfort

ECONOMY/

ECONOMY/

Comfort

COMFORT

COMFORT

TEMP.

SELECTOR

SELECTOR

C.H. < 34° C

TEMP.

YES

NO

NO

C.H. < 34° C

NO

Economy

YES

Economy

NO

YES

D.H.W. IS

D.H.W. IS

YES

BEING DRAWN?

BEING DRAWN?

NO

1 - Check/reset system

NO

pressure

2 - Check/restore gas

supply

MUST

3 - Check/replace short-

circuited heating probe

TIME CLOCK

4 - Check/replace siezed

YES

AND/OR ROOM

pump

THERMOSTAT

BE ACTIVATED?

FOR BOILERS

1 - Check/reset the

system pressure

WITH ELECTRONIC

NO

2 - Check/restore

NO

ANTI-FROST DEVICE:

YES

gas supply

PROTECTION IS ACTIVATED

3 - Check/replace short-

IF HEATING TEMP

circuited heating probe

IS < 5° C

4 - Check/replace

siezed pump

FOR BOILERS

WITH ELECTRONIC

YES

ANTI-FROST DEVICE:

NO

PROTECTION IS ACTIVATED

IF HEATING TEMP

IS < 5° C

A

FC004Aa

18 B063