Ariston microSYSTEM 10 RFFI Servicing Instructions page 17

A
IS THE PUMP
RUNNING?
YES
IS THE FAN
RUNNING?
YES
B
B063
NO
POWER T O
THE PUMP?
YES
1 - C
HECK THE OPERATION
OF THE PUMP
2 - R /R
ELEASE EPLACE THE
PUMP
NO
BOILER
SHUTDOWN?
NO
INTERNAL
P.C.B. PROTECTION
ACTIVATED?
NO
POWER T O
THE FAN?
YES
1 - R
EPLACE THE FAN
NO
1 - C
HECK THE PUMP CABLE
2 -
C /R P.C.B.
HECK EPLACE
(CT1)
3 - C
HECK THE SYSTEM
PRESSURE GAUGE IS AT
1.5
BAR
YES
YES
NO
1 - R
ESET THE BOILER
1 - C /R
HECK EPLACE AIR
PRESSURE SWITCH
AND CABLE
2 - C
HECK IF THE RESET
IS JAMMED
3 - C /R
HECK EPLACE
DETECTION ELECTRODE
1 - C /R
HECK EPLACE FAN
CONNECTION CABLE
2 - C /R P.C.B.
HECK EPLACE
3 - C /R
HECK EPLACE AIR
PRESSURE SWITCH
17