Ariston Euro Combi A/27 MFFI - 2 Fault Finding; Fault Finding Guide (Flow-Chart)

20
B029
2. FAULT FINDING
1) There is sufficient
water in thesystem
2) The gas is turned on
3) Theelectricityto the
boiler is on
Preliminary Checks
Makesure that:
HAS
THE LIGHT fOR
THE POWER SUPPLY
COME ON?
SETTING
FOR THE OPERATING
MODE
IS HOT
WATERBEING
DEMANDED?
NO
NO
WINTER
SUMMER
FUME DISCHARGE TEST
NO
YES
YES
YES
NO
NO
YES
YES
1) Check the fuses
2)Check the power
supply cord, plug and
outlet
3)Check/replace the power
supply PCB
Press the
On / Off Button
FOR BOILERS
EQUIPPED WITH AN
ELECTRONICANT-FREEZE
SYSTEM:HASTHESAFETYBEEN
TRIGGERED TO ACTIVATE
THE DEVICE?
(T sensor <5°C)
FOR BOILERS
EQUIPPED WITH AN
ELECTRONICANT-FREEZE
SYSTEM:HASTHESAFETYBEEN
TRIGGERED TO ACTIVATE
THE DEVICE?
(T sensor <5°C)
DO THE
PROGRAMMING
TIMERAND/OREXTERNAL
THERMOSTATNEED
TO BE ACTIVATED
A
ISHOT
WATERBEING
DEMANDED?
It is possible to detect and correct any defect by using the standard fault
finding diagrams described in this chapter.
2.1 Fault Finding Guide
(Flow-chart)