58
YES
NO
NO
MAIN BURNER
REMAINS POWERED
AND LIT
YES
YES
YES
NO
MAIN BURNER
REMAINS POWERED
AND LIT
NO
INDOOR BLOWER MOTOR
STARTS 20 SECONDS
AFTER GAS VALVE OPENS
YES
REPLACE BLOWER MOTOR
REPLACE VALVE IF NO
FLOW THRU VALVE
REPLACE (IFC) IF WIRING
TO VALVE IS OK
REPLACE (IFC) IF
WIRING TO BLOWER
MOTOR IS OK
NOTE: IF (IFC) GOES INTO LOCKOUT WAIT 30 SECONDS THEN
RESET SYSTEM
• CHECK POLARITY OF 115VAC SUPPLY
• CHECK CONTINUITY OF GROUND WIRE
• CHECK INSULATION ON IGNITER LEADS
• CHECK FLAME SENSE CURRENT (YELLOW LED)
LED IS ON IF FLAME CURRENT IS GOOD.
IT FLASHES IF CURRENT IS MARGINAL.
• TURN POWER OFF TO UNIT.
• CLEAN FLAME SENSOR WITH STEEL WOOL IF LED FLASHES
• RESTORE POWER TO UNIT
• IF CHECKS ARE OK, REPLACE (IFC)
NOTE: IF (IFC) GOES INTO LOCKOUT WAIT 30 SECONDS THEN
RESET SYSTEM
• CHECK CONTINUITY OF GROUND WIRE, NOTE: IF GROUND IS
POOR OR ERATIC, SHUTDOWN MAY OCCUR OCCASIONALLY EVEN
THOUGH OPERATION IS NORMAL AT THE TIME OF CHECKOUT.
• CHECK FLAME SENSE CURRENT
• CHECK FOR EXCESSIVE HEAT AT IGNITER BASE, (TEMP.
ABOVE 1000 F (538 C) CAUSES SHORT TO GROUND)
• TURN POWER OFF TO UNIT.
• CLEAN FLAME SENSOR WITH STEEL WOOL.
• RESTORES POWER TO UNIT.
• IF CHECKS ARE OK, REPLACE (IFC)
SYSTEM WILL ATTEMPT TO LIGHT 4 TIMES. VOLTAGE IS PRESENT AT THE
VALVE FOR ONLY 8 SECONDS DURING EACH TRIAL FOR IGNITION (SYSTEM WILL
GO INTO A 1-HOUR LOCKOUT AFTER 4 TRIES), THE BLOWER AND INDUCED
DRAFT BLOWER WILL RUN 180 SEC. IF THE FIRST AND SECOND IGNITION TRIAL
FAILS TO SENSE FLAME
• CHECK FOR 24VAC ACROSS THE VALVE AND
VALVE TERMINALS ON THE (IFC)
NO
• CHECK IGNITER POSITION,
• CHECK FOR GAS FLOW TO AND FROM VALVE.
• CHECK FOR 115VAC ACROSS BLOWER
MOTOR AND BLOWER MOTOR TERMINALS
(HEAT AND NEUTRAL) ON (IFC)
NO
TURN THERMOSTAT TO OFF
VALVE SHUTS OFF
FLAME GOES OUT
• CHECK FOR PROPER THERMOSTAT OPERATION.
• REMOVE VALVE LEAD AT (IFC)
IF VALVE CLOSED, RECHECK THERMOSTAT AND
WIRING IF NOT, REPLACE VALVE
YES
NO
DRAFT MOTOR STOPS
AFTER 5 SEC.
TROUBLESHOOTING ENDS
• CHECK FOR OPEN LIMIT,
REPLACE (IFC)
YES
NO
INDOOR BLOWER MOTOR
STOP AFTER
90/120/160/180 SECONDS
• CHECK FOR OPEN LIMIT,
REPLACE (IFC)
REPEAT PROCEDURE UNTIL TROUBLEFREE
OPERATION IS OBTAINED.
92-22744-10-01
Summary of Contents for RGRA SERIES
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