A

YES

1 - Check if there is air in the system

2 - Check main circuit flow switch operation

3 - Check pressure on the water gauge and fill system to return to 1 bar

1 - Turn the boiler off then on (protection reset)

IS THE PUMP

RUNNING?NO

YES

POWER TO

THE PUMP?

YES

DOES THE

"NO WATER" L.E.D.

ILLUMINATE

(WITHIN 40 SECS)?

NO

1

- Check that the pump

 

is not stuck

 

 

 

 

 

2

- Release/replace pump

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

1 - Check pump cable

2 - Check/replace P.C.B.

3 - Check main flow main switch operation when drawing D.H.W.

B

FC004Ab

B063

19

Page 43
Image 43
Ariston 47-116-15 installation instructions Yes