Rheem RGTA SERIES User Manual

56
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.
• TURN POWER OFF TO UNIT.
• CLEAN FLAME SENSOR WITH STEEL WOOL.
• RESTORE POWER TO UNIT.
• IF CHECKS ARE OK, REPLACE (IFC)
YES
NO
NO
MAIN BURNER
LIGHTS
YES
NO
MAIN BURNER REMAINS
POWERED AND LIT
YES
YES
YES
NO
SYSTEM RUNS UNTIL
CALL FOR HEAT ENDS
NO
INDOOR BLOWER MOTOR
STARTS 20 SECONDS
AFTER BURNER LIGHTS
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
• 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)
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 FAIL 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 OFF
• 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
STOPS AFTER
90/120/160/180 SECONDS
• CHECK FOR OPEN LIMIT,
REPLACE (IFC)
REPEAT PROCEDURE UNTIL TROUBLEFREE
OPERATION IS OBTAINED.
92-22744-12-01

Rheem RGTA SERIES Specifications

General

Brand	Rheem
Model	RGTA SERIES
Category	Furnace
Language	English