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FLASHING SLOW
CONTINUOUS ON
CONTINUOUS OFF
2 FLASHES
3 FLASHES
4 FLASHES
5 FLASHES
6 FLASHES
7 FLASHES
p
SYSTEM FAULTS
REFRIGERANT CIRCUIT
Liquid Pressure Too high
Liquid Pressure Too Low
Suction Pressure Too High
Suction Pressure Too Low
Liquid Refrigerant floodback (TXV System)
Liquid Refrig. floodback (Cap. Tube System)
I. D. Coil Frosting
Compressor Runs Inadequate or No Cooling
ELECTRICAL
Compressor & O.D. fan Do Not Start
Compressor Will Not Start But O.D. Fan Runs
O.D. Fan Won't Start
Compressor Hums But Will Not Start
Compressor Cycles on IOL
I.D. Blower Won't Start
P-PRIMARY CAUSES S-SECONDARY CAUSES
IGN LED DIAGNOSTIC INDICATOR
CHECK POWER / INTERNAL FAILURE
FLAME SENSED WITH GAS VALVE OFF
FLAME ROLLOUT SWITCH (FL) OPEN
CHECKOUT PROCEDURE
TROUBLESHOOTING CHART
NORMAL CALL FOR HEAT
NORMAL
SYSTEM LOCKOUT ( NO FLAME )
PRESSURE SWITCH PROBLEM
HIGH LIMIT (TCO) OPEN
W1 & W2 SWAPPED
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