Carrier Infinity 25VNA8 - Page 21

21
Flash Code ActionsPo ssible CausesMode
Reset
Time
Amber LED DescriptionTy pe
59 Local
DISCHARGE TEMP OUT
OF RANGE EVENT
(Stage down for each oc-
currence, elevates to fault
code 74 after 5 occurrence.
Reduced capacity is
cleared if demand cycle is
satisfied without ODT
reaching limit, or system
has been continuously run-
ning at any stage for 2
hours with reduced capaci-
ty)
15 Min-
utes
Both Refer to fault code 74
61 Local
FAN INVERTER FAULT
(elevates to fault code 76
after 5 occurrences)
6 Minutes Both
Fan motor failed to
start
Troubleshoot outdoor fan motor & blade
and make sure they are working
Fan motor rotor mis-
alignment
System will attempt to ru n again
Refer to fault code 76
63 Local
FAN INVERTER CURRENT
FAULT
(elevates to fault code 86
after 5 occurrences)
6 Minutes Both Refer to fault code 86
65 Local
D C V O LT S L OW --- S P E E D
LIMITING
NA Both
Caused by other
fault code shut down
System will attempt to ru n again
Low supply line volt-
age (< 197 VAC )
Check supply voltage to ODU; if low con-
tact utility provider
Loosewireincontrol
box area
Loosewire:checkforloosewireinODU
Inverter internal
damage
Replace Inverter
66 Event
OUTDOOR FAN DROPPED
OUT
6 Minutes Both
MOC is reporting
that fan motor isn’t
running
Troubleshoot fan motor an d make sure it
is working
3T Inverter enters
test mode
Replace inverter with latest software
67 Event STATOR HEATER FAULT 6 Minutes Both
There is a demand
for stator heat but
MOC doesn’t detect
it
Check compressor winding resistance or
miswire of compressor leads at terminals
U,V,W
Damaged inverter
generating other in-
operable fault codes
such as 88, 95
Replace Inverter
68 Event
10MINSTAGE2WARMUP
DELAY
10 Min-
utes
Both
High voltage power
cycle
No action
69
System
Malfunction
INVERTER/COMPRESSOR
INTERNAL FA ULT (Elevates
to this fault code after 5 hid-
den occurrences of itself)
15 Min-
utes
Cool Overcharged System
Check system subcooling to determine
charge status, if high remove charge using
Charging Mode (follow proper charging
procedures)
Heat Overcharged System
Check charge in heating mode per heating
check charge chart. If pressures do not
match then pull out charge, weigh in using
heating charge method
Both
Phase imbalance/
compressororin-
verter miswir e
Check compressor winding resistance or
miswire of compressor leads at terminals
U,V,W
Flooded start Troubleshoot EX V & TXV
Inverter damage Replace inverter
Compressor dam-
age
Replace compressor
71 Event
COMPRESSOR DROPPED
OUT
6 Minutes Both
MOC is reporting
that compressor isn’t
running
Refer to TIC 2015---0017 for more details
3T Inverter enters
test mode
Replace inverter with latest software
72 Local
SUCTION OVER TEMPER-
ATURE EVENT
(elevates to fault code 82
after 3 occurrences)
15 Min-
utes
Both Refer to fault code 82