36
T
ROUBLESHOOTING
ClimateTalk
Fault Code
PCB LED
Display
Transmitted ClimateTalk
Message
Thermostat Fault
Probable Causes
Corrective Actions
53
-
PCB PR 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
there may be a problem with the
equipment.
●
Obstruction in fan rotation
●
Ooutdoor fan motor not connected properly
●
Outdoot 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 indicates
they may be a problem with the
equipment.
●
Thermistors inoperable or improperly
connected
●
Faulty TXV
●
Faulty control board
●
Check the connection to thermistors; Repair/replace if
needed
●
Check TXV; 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
improperly connected
●
Discharge thermistor is put on 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
57
-
CL LOOP SWEAT
This indicates the control is sensing
sweating on the cooling loop.
●
Refrigerant Leak
●
Low refrigerant charge
●
Faulty TXV
●
Thermistors inoperable or improperly
connection
●
Test for system leaks using leak test procedure
●
Check refrigerant charge level; Adjust if needed
●
Check TXV; Replace if needed
●
Check the connection to thermistors; Repair/replace
if needed
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
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
necessary data for it to properly perform
its functions.
●
Air conditioner is wired as part of a
communicating system and integrated control
module does not contain any shared data.
●
Replace control board if necessary
●
Re-write shared data using memory card
D1
Ed1
INVALID DATA
Control board does not the appropriate
data needed to properly perform its
functions.
●
Air conditioner 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.
●
Replace control board if necessary
●
Re-write shared data using memory card
D2
Ed2
INVALID SYSTEM
The airflow requirement is greater than
the airflow capability of the indoor
subsystem.
●
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 the system or
missing parameters
●
Communication wiring has loose connection.
●
Verify shared data is correct for your specific model;
Repopulate data if required
●
Check communication wiring. Repair as needed.
D3
Ed3
INVALID CONFIG
There is a mismatch between the shared
data and the control physical hardware.
●
Shared data sent to integrated control module
does not match hardware configuration.
●
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.
11
E11
RUN SYS TEST
This test is required at startup. Installer
should navigate to the ComforrtNet User
Menu, choose Air Conditioner, then EQUIP
TEST and SYSYTEM TEST. Selecting ON
will run the required test. Display will clear
once testing is complete.
●
Incomplete SYSTEM TEST
●
SYSTEM TEST is running
MESSAGE ONLY
Items below are messages only displayed on the thermostat screen.
