Ariston EURO COMBI A/23 MFFI Petunjuk Servis - Halaman 21

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Ariston EURO COMBI A/23 MFFI Petunjuk Servis
1) Check for air in the
system
2) Check the pressure switch
for activating pump
3) Check/replace water
gauge and refill the
the system properly
1) Turn the boiler off
and then back on
again (safety reset)
B029
A
DOES THE
CIRCULATION PUMP
COME ON?
YES
DOES THE
INSUFFICIENT WATER
YES
INDICATOR LIGHT COME
ON? (within
40 sec.)
NO
B
NO
POWER TO
THE PUMP?
YES
1) Check to see if pump is
stuck
2) Replace circulation pump
NO
1) Check
wiring
2) Check/replace
wire to PCB
3) Replace
power supply
PCB
4) Replace control
PCB
5) Check micro-
switch when hot
water is requested.
21