LAARS 9600 CB & HWG - Service Manual - Manual (Page 21)

9600 CB & HWG Service Manual
Page 21
RESET BOILER BY SWITCHING POWER OFF FOR
15 SECONDS - WHEN "VALVE/FLAME" LITE LIGHTS
IS THERE 24 VAC BETWEEN ORANGE AND YEL-
LOW WIRES ON GAS VALVE AND/OR DOES GAS
VALVE CLICK? TURN ON VALVES, FILL LP TANK ON LP UNIT
- IF REQ'D - RESET BOILER BY SWITCHING
POWER OFF FOR 15 SECONDS. RUN
THROUGH TWO TO THREE CYCLES
CHECK TCO AND INTAKE TCO FOR CONTINUITY
DOES BURNER IGNITE AND
APPEAR TO RUN PROPERLY?
NUISANCE LOCKOUT CAUSED FLASHING
LITE - CHECK COMBUSTION CHECK IGNITER-
IGNITER OK?
CHECK FOR GAS FLOW
- IS METER MOVING?
REPLACE
IGNITER
REPLACE INTEGRATED BOILER CONTROL P/N 2400-224
INSTALL
CORRECT
ORIFICES BOILER CYCLES THROUGH THREE CYCLES AFTER
RESETTING AND "VALVE/FLAME" LITE FLASHES
CHECK GAS AND AIR ORIFICE
FOR PROPER SIZE REPLACE GAS VALVE
ARE GAS VALVES AND GAS METER TURNED ON.
IS THERE GAS IN LP TANK (LP UNITS).
YES
YES
YES
YES
YES
NO
NO
NO
INCORRECT CORRECT
RED "VALVE/FLAME" LIGHT FLASHING
(YOU MUST COMPLETE PAGE 16 FIRST)
NO
NO
REPLACE
DEFECTIVE
TCO
CHECK
WIRES TO
GAS VALVE
CONTINUITY
(0 OHMS) NO CONTINUITY
( OHMS)
REPLACE
INTEGRATED
BOILER
CONTROL P/
N 2400-224
CORRECT
WIRING
OK
FAULTY