Fault Code Action Table - Bryant 189BNV EVOLUTION Service Manual

Flash
Type Amber LED Description
Code
ON, no flash
1, pause
1 (2 sec ON), longer pause
(1 second OFF)
System Mal-
25
function PLUG/INVERTER SIZE
HIGH PRESSURE SWITCH
(stage/speed down for each
31 Local
occurrence, elevates to fault
code 84 when it occurs while
running on the lowest stage)
LOW PRESSURE TRIP
32 Local (elevates to fault code 83 after
LOST INVERTER COMMUNI-
(Occurs aftr 2 minutes of no
communications between AOC
33 Local
(Elevates to fault code 48 after
3 consecutive failures within 20
minute or 20 minutes continu-
46 Local
LOST INVERTER COMMUNI-
System
48
(Elevated from fault code 33 af-
Malfunction
COMPRESSOR OVER CUR-
49 Local
(Elevates to fault code 95 after
53 Fault
SUCTION TEMP SENSOR
54 Fault
Table 6—Fault Code Actions
Reset
Time
Standby
Variable Capacity
Variable Capacity
(Range Cutback)
INVALID MODEL
NA
6 Minutes
OPEN
(then re-
duced
stage oper-
ation)
6 Minutes
3 occurrences)
CATIONS
and MOC)
NA
ous loss of connection)
BROWNOUT EVENT 6 Minutes
CATIONS
NA
ter 3 occurrences)
RENT FAULT
6 Minutes
5 occurrences)
OUTDOOR AIR TEMP
NA
SENSOR FAULT
NA
FAULT
Mode Possible Causes
Wrong Model Plug In-
stalled
Damaged Model Plug
Missing model plug on
Both
service board
Damaged AOC control
Incorrect Model Plug
with Inverter Size
System will self-mitigate by reducing the stage,
Both High Pressure Event
Both Low Pressure Event
hours of accumulated operation without further
Loose or disconnected
harness (Hardness be-
Both
tween AOC (PL20) and
MOC)
Radio or Electrical noise
Possible damage to in-
verter
Both low line voltages
Loose or disconnected
harness (Hardness be-
tween AOC (PL20) and
MOC)
Both
Radio or Electrical noise
Possible damage to in-
verter
Both Refer to fault code 95
Sensor Harness not
connected to AOC con-
trol
Broken or loose har-
ness wire chart to check resistance at given temperature
Both
Broken or Damaged
Sensor chart to check resistance at given temperature
Hardware damage to
AOC control
Sensor Harness not
connected to AOC
control
Broken or loose
harness wire chart to check resistance at given temperature
Suction Thermistor not
Both
properly attached or in
wrong location
Broken or Damaged
Sensor chart to check resistance at given temperature
Hardware damage to
AOC control
18
Actions
Verify correct model plug installed
Check model plug for corrosion or breakage;
replace if necessary
Re-install original model plug
Replace AOC control
Replace plug or inverter with correct size (If
model plug is for 2 Ton but Inverter is 3 Ton,
fault code 25 will be shown)
persistent conditions will lead to lockout (refer
to Error Code 84). 2 hours of accumulated
operation without further fault will reset fault
reduced stage operation.
System will self-mitigate, persistent conditions
will lead to lockout (refer to Error Code 83) 2
fault will reset fault counter
Verify good harness connection
System will try to self-mitigate with repeated
start attempts
change out the Inverter drive
if persistent contact power provider
Verify good harness connection
System will try to self-mitigate with repeated
start attempts
change out the Inverter drive
Refer to fault code 95
Ensure plug is connected to AOC control
Check harness for continuity; see resistance
Check harness for continuity; see resistance
Replace AOC control
Ensure plug is connected to AOC control
Check harness for continuity; see resistance
Ensure Sensor is properly attached to the ac-
cumulator entry-tube
Check harness for continuity; see resistance
Replace AOC control