SERVICING
67
PCBHR101-103
PBBGR101-102
Symptoms of
Abnormal Operation
Diagnostic/Status LED Codes
Fault De
-
scription
Possible Causes
Corr
ective
Actions
Notes & Cautions
Green
Yellow
Red
Red Y1
•
Compressor and outdoor fan are off.
•
Compressor protector trips four consec
-
utive times.
•
Average run time between trips is less than 15 seconds.
•
Integrated control module diagnostic/sta
-
tus LED’
s display the indicated code.
OFF
4 Flashes
ON
ON if call present; OFF if no call
•
Locked Rotor
•
Compressor bearings are seized.
•
Failed compressor run capacitor
.
•
Faulty run capacitor wiring.
•
Low line voltage.
•
Check compressor operation; repair/re
-
place as needed.
•
Check run capacitor; replace as needed.
•
Check wiring; repair/replace as needed.
•
Verify line voltage is within range on rating plate; contact local utility is out of range.
•
Turn power OFF prior to repair
.
•
Must clear fault by cycling 24V
AC to control.
•
Replace with correct replacement part(s).
•
Compressor and outdoor fan are off for
greater than 4 hours.
•
Low pressure and high pressure switches are closed.
•
Integrated control module diagnostic/sta
-
tus LED’
s display the indicated code.
OFF
5 Flashes
OFF
ON if call present; OFF if no call
•
Open Circuit
•
Power is disconnected.
•
Failed compressor protector
.
•
Compressor not properly wired to control.
•
Check circuit breakers and fuses.
•
Check wiring to unit; repair/replace as needed.
•
Check compressor; repair/replace as needed.
•
Check compressor wiring; repair/replace as needed.
•
Turn power OFF prior to repair
.
•
Fault will clear after 1 normal cycle.
•
Fault may be cleared by cycling 24V
AC to control.
•
Replace with correct replacement part(s).
•
Compressor and outdoor fan are off.
•
Low pressure and high pressure switches are closed.
•
Integrated control module diagnostic/sta
-
tus LED’
s display the indicated code.
OFF
6 Flashes
OFF
ON if call present; OFF if no call
•
Open Start Circuit
•
Compressor start winding is open.
•
Failed compressor run capacitor
.
•
Faulty run capacitor wiring.
•
Compressor not properly wired to control.
•
Faulty compressor wiring.
•
Check compressor; repair/replace as needed.
•
Check run capacitor; replace as needed.
•
Check wiring; repair/replace as needed.
•
Turn power OFF prior to repair
.
•
Fault will clear after 1 normal cycle.
•
Fault may be cleared by cycling 24V
AC to control.
•
Replace with correct replacement part(s).
•
Compressor and outdoor fan are off.
•
Low pressure and high pressure switches are closed.
•
Open start circuit has been detected 4 times with 5 minute delay between each detection.
•
Integrated control module diagnostic/sta
-
tus LED’
s display the indicated code.
OFF
6 Flashes
ON
ON if call present; OFF if no call
•
Open Start Circuit Lockout
•
Compressor start winding is open.
•
Failed compressor run capacitor
.
•
Faulty run capacitor wiring.
•
Compressor not properly wired to control.
•
Faulty compressor wiring.
•
Check compressor; repair/replace as needed.
•
Check run capacitor; replace as needed.
•
Check wiring; repair/replace as needed.
•
Turn power OFF prior to repair
.
•
Must clear fault by cycling 24V
AC to control.
•
Replace with correct replacement part(s).
Summary of Contents for ASXC16
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