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THE BOILER IS NOT
OPERATING
PLEASE CHECK THE FOLLOWING
BEFORE GOING THROUGH THE
FAULT FINDING CHART:
CHECK INSTALLATION IS
CORRECT
ALL ISOLATING VALVES
ARE OPEN
THE SYSTEM IS FULL OF WATER
(PRESSURISED) AND PURGED OF
AIR
THE PROGRAMMER AND
CONTROLS ARE ON
THE PUMP IS RUNNING
THE ELECTRICAL SUPPLY IS
CONNECTED CORRECTLY
AND PRESENT
FIGURE FIFTEEN: FAULT FINDING CHART
22
IS
THE SUPPLY LED
ILLUMINATED
YES
IS THE
ALARM LED
ILLUMINATED
NO
IS THE
CALL LED
FLASHING
YES
DOES THE CALL
LED GO SOLID AFTER
3 MINUTES
YES
ARE THE
HEAT LEDS
ILLUMINATED
YES
IS THE
TOP SW LED 3
ON THE MAIN PCB
ILLUMINATED
YES
NO
GO TO SUPPLY LED OFF
FAULT FINDING SECTION
YES
GO TO ALARM
FAULT FINDING SECTION
NO
GOTO CALL LED
FA ULT FINDING SECTION
NO
GO TO CALL LED
FAULT FINDING SECTION
NO
CHECK WATER FLOW
NO
CHANGE MAIN PCB
CHECK ELEMENTS
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