Ariston EURO COMBI A/27 MFFI Istruzioni per la manutenzione - Pagina 20
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2.
FAULT FINDING
2.1
Fault Finding Guide
(Flow-chart)
WATER BEING
DEMANDED?
FOR BOILERS
EQUIPPED WITH AN
ELECTRONIC ANT-FREEZE
SYSTEM: HAS THE SAFETY BEEN
NO
TRIGGERED TO ACTIVATE
THE DEVICE?
(T sensor <5°C)
20
It is possible to detect and correct any defect by using the standard fault
finding diagrams described in this chapter.
1) There is sufficient
2) The gas is turned on
3) The electricity to the
SUMMER
FUME DISCHARGE TEST
IS HOT
YES
NO
YES
Preliminary Checks
Make sure that:
water in the system
boiler is on
Press the
On / Off Button
HAS
THE LIGHT fOR
NO
THE POWER SUPPLY
COME ON?
YES
SETTING
FOR THE OPERATING
MODE
YES
A
1) Check the fuses
2) Check the power
supply cord, plug and
outlet
3) Check/replace the power
supply PCB
WINTER
IS HOT
YES
WATER BEING
DEMANDED?
NO
DO THE
PROGRAMMING
TIMER AND/OR EXTERNAL
THERMOSTAT NEED
TO BE ACTIVATED
FOR BOILERS
EQUIPPED WITH AN
ELECTRONIC ANT-FREEZE
SYSTEM: HAS THE SAFETY BEEN
TRIGGERED TO ACTIVATE
THE DEVICE?
(T sensor <5°C)
NO
B029