American Standard 4A6V0024A1000B Service Facts page 27

Display
Alert
Alert
Assembly
Group
Code
Text
Supply
180 Voltage HIGH PWR CO
Failure
Gate Drive
GATE DRV CO
Failure
Reverse
Rotation
Protection REV ROT CO
Soft
Lockout
Motor
Phase
PHS LOSS CO
Loss
Detection
Reverse
Rotation
Protection REV ROT LO
Hard
181
Lockout
Stall
STALL DET CO
Detection
Gate Drive
Failure
GATE DRV LO
Trip Lock
Illegal
Configura- CONFIG ERR
tion
No Motor NO MOTOR
4A-V0-SF-1G-EN
Sub-
A/TZONE
State action on
alar-
850/950
occurrence
m
Shutdown and retry
3 "Wait"
after 5 minutes
IGBT Failure. Gate
driver fault is
activated. Control will
0 Err 181.00
clear the fault and
retry every 5 minutes.
Soft Lockout for 5
1 "Wait" minutes. Send "Wait"
to Thermostat
Emergency shutdown.
Control will clear the
2 Err 181.02
fault and retry every 5
minutes.
Can't start system
without Service being
3 Err 181.03 called. Send error to
thermostat and alert
menu in CDA
Emergency shutdown.
Locked Rotor. Control
4 Err 181.04
will clear the fault and
retry every 5 minutes.
10 consecutive
7 Err 181.07 occurrences of gate
drive failure
Trip lock upon
8 Err 181.08
occurrence
Shutdown. Send "clear
alarm" message every
9 Err 181.09
5 min and retry
demand
V V a a r r i i a a b b l l e e S S p p e e e e d d A A l l e e r r t t C C o o d d e e s s
Alert
State action on
Description
clearance
Drive output
Resume normal
current exceeds
operation
internal limit set
for current sensor
Control will clear
fault when
condition no longer
exists, 10
occurrences of gate
Drive hardware
drive failure cause
failure alert
the control to trip
lock, which can only
be cleared with a
power cycle.
Suction Pressure
has not changed
After 5 minute time
at start up.
out, the
Cannot execute
compressor shall
start-up because
resume normal
suction pressure
operation.
does not drop in
the time allotted.
Compressor cable
Resume normal
connection or
operation. Control
motor winding
will clear fault when
problem. (Verify
condition no longer
wiring and
exists.
windings)
Suction Pressure
has not changed
Can be cleared only
at start up.
on power cycle.
Reverse Rotation
Shutdowns have
occurred
Resume normal
operation. Control Locked Rotor
will clear fault when Condition has
condition no longer been detected
exists.
10 consecutive
Control needs to be
occurrences of
power cycled.
gate drive failure
alert
Improper
Can only be cleared
parameters used
with a Power Cycle
in Personality
Module
The compressor
motor is not
Resume normal
detected (all
operation
three windings
are not detected)
Possible Cause
High load condition.
Overcharge, dirty coil
(s), low airflow,
recirculation,
compressor failure,
Drive hardware
failure (Run Drive
Diagnostics)
Drive hardware
failure. 10
consecutive
occurrences will
result in an Err
181.07
Compressor mis-
wired, Suction
Pressure Sensor
Failure (verify
accuracy) SOV bi-
passing, compressor
not pumping
Compressor cable
connection or motor
winding problem.
(Verify wiring and
windings) Run Drive
Diagnostics to
confirm failure mode.
Compressor miss-
wired, Suction
Pressure Sensor
5
Failure (verify
accuracy) SOV bi-
passing, compressor
not pumping
Locked Rotor
Condition has been
detected. Run Drive
Diagnostics to
confirm failure mode.
Verify system is not
grossly overcharged
and that service
valves are open.
Replace compressor.
Drive hardware
failure. Run Drive
Diagnostic Test to
confirm failure
mode. Call for tech
support, record
failure mode for
warranty claim before
replacing Drive.
Data in PM is corrupt
or wrong PM installed.
Compressor cable
missing or not
plugged in, all
compressor windings
shorted open.
27