B

 

 

 

IS THE FAN

NO

 

 

RUNNING?

 

 

YES

BOILER

YES

1 - Reset the boiler

 

SHUTDOWN?

 

 

C

NO

 

 

 

 

1 - Check/replace main

 

PUMP PROTECTION

YES

circuit flow switch

 

2 - Check/replace

 

ACTIVATED?

 

connection cable

 

 

 

 

 

 

3 - Check/replace P.C.B.

 

NO

 

 

 

INTERNAL

 

1 - Check/replace air

 

YES

pressure switch

 

P.C.B. PROTECTION

2 - Check if reset button

 

ACTIVATED?

 

is jammed

 

 

 

3 - Check/replace flame

 

NO

 

detection electrodes

 

 

 

 

 

 

1 - Check/replace

 

POWER

NO

connection cable

 

2 - Check/replace P.C.B.

 

TO FAN?

 

 

 

3 - Check/replace air

 

YES

 

pressure switch

 

 

 

 

1 - Replace fan

 

 

 

 

 

FC004Ac

20

 

 

B063

Page 44
Image 44
Ariston 47-116-15 installation instructions Yes