American Standard 4A6V8024A1000B, Service Facts

Page: 29 / 76

4A-V8-SF-1G-EN 29
Alert
Code
Alert
Group
Display
Assembly
Text
Sub-
alar-
m
A/TZONE
850/950
State action on
occurrence
State action on
clearance
Alert
Description
Possible Cause
181
Initializa-
tion Error
INIT ERR 10 Err 181.10
Emergency Shutdown.
Control will clear the
fault and retry every 5
minutes.
Resume normal
operation. Control
will clear fault when
condition no longer
exists.
Internal fault with
micro and cannot
initialize
Cycle power. If error
continues call for tech
support, record
failure mode for
warranty claim before
replacing Drive.
ADC
Supply
Range
exceeded
ADC SUP EX 11 “Wait”
Emergency shutdown.
Control will clear the
fault and retry every 5
minutes.
Resume normal
operation. Control
will clear fault when
condition no longer
exists.
Internal
communication
fault
If error continues call
for tech support,
record failure mode
for warranty claim
before replacing
Drive.
ADC
Inverter
tempera-
ture range
exceeded
ADC INV T EX 12 “Wait”
Emergency shutdown.
Control will clear the
fault and retry every 5
minutes.
Resume normal
operation. Control
will clear fault when
condition no longer
exists.
Internal fault with
temperature
sensor.
If error continues call
for tech support,
record failure mode
for warranty claim
before replacing
Drive.
ADC
Rectifier
tempera-
ture range
exceeded
ADC REC T EX 13 “Wait”
Emergency shutdown.
Control will clear the
fault and retry every 5
minutes.
Resume normal
operation. Control
will clear fault when
condition no longer
exists.
Internal fault with
temperature
sensor.
If error continues call
for tech support,
record failure mode
for warranty claim
before replacing
Drive.
ADC
reference
range
exceeded
ADC REF EX 14 “Wait”
Emergency shutdown.
Control will clear the
fault and retry every 5
minutes.
Resume normal
operation. Control
will clear fault when
condition no longer
exists.
Internal fault with
micro
If error continues call
for tech support,
record failure mode
for warranty claim
before replacing
Drive.
ADC
current
range
error
ADC CUR EX 15 “Wait”
Emergency shutdown.
Control will clear the
fault and retry every 5
minutes.
Resume normal
operation. Control
will clear fault when
condition no longer
exists.
Internal fault with
current sensor
If error continues call
for tech support,
record failure mode
for warranty claim
before replacing
Drive.
182
Startup
Algorithm
Fault
STRT SOFT LO 0 “Wait”
Can’t execute start-up
algorithm Can’t start
system for at least 5
minutes. Proceed to
Normal shutdown.
Send “Wait” to
thermostat, send Alert
to CDA home screen
menu and history
Resume normal
operation
Compressor has a
failed startup
attempt.
Drive is limiting
compressor speed
due to Inverter high
temperature or high
current.
STRT HARD LO 1 Err 182.01
Shutdown. Can’t start
system without
Service being called.
Send error to
thermostat and alert
menu in CDA
Can be cleared only
on power cycle.
After power cycle,
the compressor
shall resume
normal operation.
5 startup soft
lockouts occurred
without a
successful start.
Drive is limiting
compressor speed
due to Inverter high
temperature or high
current.
183
Shutdown
Algorithm
Fault
SHTDWN CO 0 “Wait”
Control is reset
internally. Retry after 5
minutes.
Resume normal
operation after
compressor comes
to a halt.
Compressor does
not come to a
complete stop
even after the
defined time and
continues to run
even after control
is released.
Loss of internal
communication. If
error continues after
system resets, call for
tech support.
184
Protection
Algorithm
Fault
IDCF CO 0 “Wait”
Shutdown. Soft
lockout. Send “Wait” to
thermostat, send Alert
to CDA home screen
menu and history
Resume normal
operation after
suction pressure is
greater than
107psig (35°F
saturated)and
compressor cutout
time has elapsed.
Cut Out Time = 5
minutes (In cooling mode)
Indoor coil freeze
protection is
active. Suction
pressure sensor
is <78psig (20°F
saturated) for 20
minutes.
Restricted airflow, low
charge, low ambient
operation, restriction
in refrigerant system
or metering device.
V Va arriia ab blle e S Sp pe ee ed d A Alle errtt C Co od de ess