20
IS THE BURNER
ALIGHT?
YES
NO
YES
YES
YES
NO
NO
NO
YES
1 - Check/replace igniter plugs
2 - Check wiring
3 - Check spark generator
4 - Check small wire
5 - Check power supply PCB
6 - Check control PCB
1 - Check if flame strikes
detection electrode
2 - Check soft-light gas
pressure
3 - Check/replace detection
electrode
4 - Check the power P.C.B.
5 - Check the control P.C.B.
1 - Check supply of gas to gas
valve
2 - Check power supply P.C.B.
3 - Check control P.C.B.
4 - Check modureg
Shutdown L.E.D. off
Restart of the fan
IS THE
AIR PRESSURE SWITCH
ACTIVATED?
IS FLUE
DISCHARGE
NORMAL?
HAS THE
BOILER SAFETY
SHUTDOWN BEEN
ACTIVATED?
WAS THE
RESET SWITCH
PRESSED?
NO
1 - Check flue discharge
2 - Check venturi & small pipes
3 - Check wire for air press.switch
4 - Check/replace air press.switch
5 - Check/replace PCB wire
6 - Check/replace power PCB
7 - Checl/replace control PCB
C
D
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Summary of Contents for Genus 27 Plus
Page 46: ...403 Users Manual...
