Ariston GENUS 41-116-01 Service Manual page 24

C
IS
THE AIR PRESSURE
SWITCH ACTIVATED?
YES
ARE THE
FUMES DISCHARGED
CORRECTLY?
YES
DOES THE
BURNER LIGHT?
YES
SAFETY
SHUTDOWN OF THE
BOILER ACTIVATED?
NO
D
24
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1) Check flue discharge
2) Check venturi & small pipes
3) Check wire for air press.switch
4) Check/replace air press. switch
NO
5) Check/replace P.C.B.wire
6) Check/replace power P.C.B.
7) Check/replace control P.C.B.
1) Check/ replace ignition electrodes
2) Check wiring
3) Check spark generator
4) Check small wire
NO
5) Check power supply P.C.B.
6) Check control P.C.B.
1) Check supply of gas to gas
valve
2) Check power supply P.C.B.
NO
3) Check control P.C.B.
4) Check functionality of the gas
valve
1) Check whether flame
detection electrode is
postioned in the flame
YES
2) Check the electrode
3) Check the power P.C.B.
4) Check the control P.C.B.
NO
RESET SWITCH
Shutdown L.E.D. off
Restart of the fan
WAS THE
PRESSED?
YES
B005