t
rouBleShootIng
ClimateTalk
PCB LED
Transmitted ClimateTalk
Fault Code
Display
Message
47
e47
no SYS ver teSt
49
e49
no cHArGe Mode
50
e50
line volt ctrl
51
e51
od coMM error
52
-
coMP fAil Minor
53
-
PcB or fAn Min
54
-
eev Minor
55
-
Hi diS teMP Min
56
e56
SUct teMP fAil
B0
eb0
no id AirfloW
B9
eb9
loW id AirfloW
d0
ed0
no net dAtA
d1
ed1
invAlid dAtA
d2
ed2
SYSteM MiSMAtcH
d3
ed3
invAlid coMfiG
d4
ed4
invAlid Mc dAtA
Thermostat Fault
The control is unable to start the
System Verification test because
• Heat provided by secondary heating
indoor heat has been turned on by
thermostat. Please set thermostat to
off position.
The control is unable to enter
Charging Mode because indoor heat
• Heat provided by secondary heating
has been turned on by thermostat.
Please set thermostat to off position.
This indicates there is a voltage
• High or low voltage from supply voltage or
issue on the control board. See
service manual for troubleshooting
• Faulty control board
information.
• Noise
This indicates potential communica-
tion issues have been detected by
• Communication wiring disconnected
the outdoor control board.
This error indicates the equipment is
experiencing frequent compres-
• Stop valve not completely open
sor faults. Control has determined
• The compressor wire is lost phase
continued operation is acceptable.
• Compressor motor failure
This indicates they may be a problem
with the equipment.
This error indicates the equipment is
experiencing frequent outdoor control
• Obstruction in fan rotation
board and/or motor faults. Control
• Outdoor fan motor not connected properly
has determined continued operation
• Outdoor fan not running
is acceptable. This indicates they
• Faulty control board
may be a problem with the equip-
• Noise
ment.
This error indicates the equipment is
experiencing frequent low discharge
• Thermistors inoperable or improperly
superheat faults.
Control has determined continued
• Faulty indoor EEV or indoor EEV coil
operation is acceptable. This indi-
• Faulty control board
cates they may be a problem with the
equipment.
• Discharge thermistor inoperable or improp-
This error indicates the equipment is
experiencing frequent high discharge
• Discharge thermistor is put in incorrect
temperature faults. Control has
determined continued operation is
• Low refrigerant charge
acceptable. This indicates they may
• Overcharge
be a problem with the equipment.
• Faulty compressor
The control has detected if the
• Suction thermistor inoperable or not prop-
Outdoor Suction Temperature Sensor
is out of range.
• Failed indoor blower motor
The estimated airflow from indoor
• Indoor fan motor not properly connected
subsystem is near to 0 CFM.
• Too much static pressure
• Failed indoor blower motor
Estimated airflow from motor is lower
• Indoor fan motor not properly connected
than the airflow requirement.
• Too much static pressure
Control board does not have the nec-
• Air conditioner is wired as part of a com-
essary data for it to properly perform
its functions.
• Air conditioner is wired as part of a com-
Control board does not have the
appropriate data needed to properly
perform its functions.
• Air conditioner is wired as part of a
The airflow requirement is greater
than the airflow capability of the
• Shared data is incompatible the system or
indoor subsystem.
• Communication wiring has loose con-
• Indoor unit without EEV.
There is a mismatch between the
• Shared data sent to integrated control
shared data and the control physical
hardware.
The memory card data has been
• Shared data on memory card has been
rejected.
Probable Causes
source
source
frequency
connected
erly connected
position or off
erly connected
municating system and integrated control
module does not contain any shared data.
municating system and integrated control
module contains invalid shared data or
network data is invalid for the integrated
control module.
communicating system and air conditioner
requires airflow greater than indoor unit's
airflow capability
missing parameters
nection.
module does not match hardware con-
figuration.
rejected.
38
38
Corrective Actions
• Turn off Furnace or heater using thermostat before
operation
• Turn off heater using thermostat before operation
• Correct low/high line voltage condition; Contact local utility
if needed
• Replace control board if necessary
• Contact local utility if needed
• Check communication wiring; Repair as needed
• Check the opening of stop valve, should be full open;
Repair/replace if needed
• Check the wire between control board and compressor
• Inspect compressor motor for proper function; Replace if
necessary
• Check and clean grille of any debris
• Check wiring from Outdoor fan motor to control board;
Repair if needed
• Check outdoor fan motor & wiring; Repair/replace if
needed
• Replace control board if necessary
• Check the connection to thermistors; Repair/replace if
needed
• Check indoor EEV; Replace if needed
• Check indoor EEV coil; Replace if needed
• Replace control board if necessary
• Check discharge thermistor resistance and connections;
Repair/replace as needed
• Check discharge thermistor position
• Check refrigerant charge level; Adjust if needed
• Check refrigerant charge level; Adjust if needed
• Check the compressor; Repair/replace if needed
• Check the connection to suction thermistor; Repair/re-
place if needed
• Check the obstruction inside duct work.
• Check ID fan motor wiring and connectors; Repair/replace
if needed
• Check ID fan motor; Replace if needed
• Check the obstruction inside duct work.
• Check ID fan motor wiring and connectors; Repair/replace
if needed
• Check ID fan motor; Replace if needed
• Replace control board if necessary
• Replace control board if necessary
• Verify shared data is correct for your specific model;
Repopulate data if required
• Check communication wiring. Repair as needed.
• Verify shared data is correct for your specific model;
Repopulate data if required
• Verify shared data is correct for your specific model;
Repopulate data if required