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