
SERVICING
79
PCBHR105
UNITARY DIAGNOSTIC CODES
Symptoms
of Abnormal
Operation
Diagnostic/Status LED
Display Codes
Fault
Description
Possible
Causes
Corrective
Actions
Notes &
Cautions
Digit 3 Digit 2 Digit 1
• Air conditioner/heat
pump fails to operate
• Integrated control
module diagnostic/
status LED display
shows the indicated
code
BLANK
d
0
• Data not yet on
Network
• Air conditioner/
heat pump is
wired as part of
a communicating
system and
integrated control
module does
not contain any
shared data
• Verify
system type
(communicating
or legacy)
• Populate
shared data
using
Bluetooth
®
Shared Data
Loader BTSDL01
• Wire system as
legacy system
• Turn power OFF
prior to repair
• Use
Bluetooth
®
Shared Data Loader
BTSDL01
for your
specific model
• Insert
Bluetooth
®
Shared Data Loader
BTSDL01
BEFORE
turning power ON.
Bluetooth
®
Shared
Data Loader BTSDL01
may be removed
after data is loaded.
Turn power OFF
before removing
Bluetooth
®
Shared
Data Loader BTSDL01
• Air conditioner/heat
pump fails to operate
• Integrated control
module diagnostic/
status LED display
shows the indicated
code
BLANK
d
1
• Invalid Data on
Network
• Air conditioner/
heat pump is
wired as part of
a communicating
system and
integrated control
module contains
invalid shared
data or network
data is invalid for
the integrated
control module
• Verify
system type
(communicating
or legacy)
• Populate
correct shared
data using
Bluetooth
®
Shared
Data Loader
BTSDL01
• Wire system as
legacy system
• Turn power OFF
prior to repair
• Use
Bluetooth
®
Shared Data Loader
BTSDL01
for your
specific model
• Insert
Bluetooth
®
Shared Data Loader
BTSDL01
BEFORE
turning power ON.
Bluetooth
®
Shared
Data Loader BTSDL01
may be removed
after data is loaded.
Turn power OFF
before removing
Bluetooth
®
Shared
Data Loader BTSDL01
• Air conditioner/heat
pump fails to operate
• Air conditioner/ heat
pump operating at
reduced performance
• Air conditioner/
heat pump operating
at low stage when
expected to operate
at high stage
• Integrated control
module diagnostic/
status LED display
shows the indicated
code
BLANK
d
2
• System
Mismatch
• Air conditioner/
heat pump is
wired as part of
a communicating
system and
outdoor unit
requires airflow
greater than
indoor unit’s
airflow capability
• Shared data
is incompatible
with the system
or missing
parameters
• Verify
system type
(communicating
or legacy)
• Verify shared
data is correct
for your
specific model;
repopulate data
if required
• Wire system as
legacy system
• Turn power OFF
prior to repair
• Use
Bluetooth
®
Shared Data Loader
BTSDL01
for your
specific model
• Insert
Bluetooth
®
Shared Data Loader
BTSDL01
BEFORE
turning power ON.
Bluetooth
®
Shared
Data Loader BTSDL01
may be removed
after data is loaded.
Turn power OFF
before removing
Bluetooth
®
Shared
Data Loader BTSDL01
• Error code will
be cleared once
data is loaded.
Applies only to fully
communicating
system.
Содержание ASXC16
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