36
36
t
rouBleShootIng
ClimateTalk
Fault Code
PCB LED
Display
Transmitted ClimateTalk
Message
Thermostat Fault
Probable Causes
Corrective Actions
12
e12
od ctrl fAil1
Indicates a general memory error.
•
High electrical noise
•
Faulty control board
•
Replace control board if necessary
13
e13
Hi PreSSUre c
(c = criticAl)
This error indicates the equipment
is experiencing frequent high pres
-
sure faults.
•
Blocked/restricted condenser coil and/
or lines
•
Stop valve not completely open
•
Overcharge
•
Outdoor fan not running
•
High pressure switch (HPS) inoperable
•
Faulty indoor EEV coil
•
Faulty indoor EEV
•
Faulty control board
•
Check and clean condenser coil and/or lines
•
Check the opening of stop valve, should be full open;
Repair/replace if needed
•
Check refrigerant charge level; Adjust if needed
•
Check outdoor fan motor & wiring; Repair/replace if
needed
•
Check indoor EEV; Replace if needed
•
Check indoor EEV coil; Replace if needed
•
Replace control board if necessary
14
-
Hi PreSSUre M
(M = Minor)
This error indicates the equipment
is experiencing frequent high pres
-
sure faults. Control has determined
continued operation is acceptable.
This indicates they may be a prob-
lem with the equipment.
•
Blocked/restricted condenser coil and/
or lines
•
Stop valve not completely open
•
Overcharge
•
Outdoor fan not running
•
High pressure switch (HPS) inoperable
•
Faulty indoor EEV coil
•
Faulty indoor EEV
•
Faulty control board
•
Check and clean condenser coil and/or lines
•
Check the opening of stop valve, should be full open;
Repair/replace if needed
•
Check refrigerant charge level; Adjust if needed
•
Check outdoor fan motor & wiring; Repair/replace if
needed
•
Check indoor EEV; Replace if needed
•
Check indoor EEV coil; Replace if needed
•
Replace control board if necessary
15
e15
loW PreSSUre c
This error indicates the equipment
is experiencing frequent low pres
-
sure faults.
•
Stop valve not completely open
•
Restriction in refrigerant lines
•
Low refrigerant charge
•
Refrigerant leak
•
Low pressure sensor inoperable or not
properly connected
•
Indoor fan motor not functioning correctly
•
Faulty indoor EEV coil
•
Faulty indoor EEV
•
Faulty control board
•
Check the opening of stop valve, should be full open;
Repair/replace if needed
•
Check for restrictions in refrigerant line; Repair/replace
if needed
•
Check refrigerant charge level; Adjust if needed
•
Test for system leaks using leak test procedure
•
Check the connection to low pressure sensor; Repair/
replace if needed
•
Check indoor EEV; Replace if needed
•
Check indoor EEV coil; Replace if needed
•
Check indoor blower motor & wiring; Repair/replace if
needed
•
Replace control board if necessary
16
-
loW PreSSUre M
This error indicates the equipment
is experiencing frequent low pres
-
sure faults. Control has determined
continued operation is acceptable.
This indicates they may be a prob-
lem with the equipment.
•
Stop valve not completely open
•
Restriction in refrigerant lines
•
Low refrigerant charge
•
Refrigerant leak
•
Low pressure sensor inoperable or not
properly connected
•
Indoor fan motor not functioning correctly
•
Faulty indoor EEV coil
•
Faulty indoor EEV
•
Faulty control board
•
Check the opening of stop valve, should be full open;
Repair/replace if needed
•
Check for restrictions in refrigerant line; Repair/replace
if needed
•
Check refrigerant charge level; Adjust if needed
•
Test for system leaks using leak test procedure
•
Check the connection to low pressure sensor; Repair/
replace if needed
•
Check indoor EEV; Replace if needed
•
Check indoor EEV coil; Replace if needed
•
Check indoor blower motor & wiring; Repair/replace if
needed
•
Replace control board if necessary
17
e17
coMPreSSor fAil
This error indicates the equipment
is experiencing frequent compres
-
sor faults.
•
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
18
e18
od ctrl fAil2
Indicates the control board may
need to be replaced.
•
Outdoor fan motor not connected properly
•
Faulty control board
•
Electrical Noise
•
Check wiring from Outdoor fan motor to control board;
Repair if needed
•
Replace control board if necessary
19
e19
PcB or fAn fAil
This error indicates the equipment
is experiencing frequent outdoor
control board and/or motor faults.
•
Obstruction in fan rotation
•
Outdoor fan motor not connected properly
•
Outdoor fan not running
•
Faulty control board
•
Electrical 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
21
e21
eev ctrl fAil
This error indicates the equipment
is experiencing frequent low dis
-
charge superheat faults.
•
Thermistors inoperable or improperly
connected
•
Faulty indoor EEV coil
•
Faulty indoor EEV
•
Over charge
•
Faulty presure sensor
•
Faulty control board
•
Check the connection to thermistors; Repair/replace if
needed
•
Check indoor EEV coil; Repair/replace if needed
•
Check indoor EEV; Replace/repair if needed
•
Check refrigerant charge level; Adjust if needed
•
Check pressure sensor; Repair/replace if needed
•
Replace control board if necessary
22
e22
Hi diScH teMP
This error indicates the equipment
is experiencing frequent high
discharge temperature faults.
Discharge thermistor is not put in
correct position.
•
Discharge thermistor inoperable or
improperly connected
•
Discharge thermistor is put in incorrect
position or off
•
Jumper wire (X33A) 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 jumper wire position (X33A)
•
Check refrigerant charge level; Adjust if needed
•
Check the compressor; Repair/replace if needed
23
e23
diScH teMP fAil
The control has detected that the
Discharge Temperature Sensor is
out of range.
•
Discharge thermistor inoperable or
improperly connected
•
Check discharge thermistor resistance and connections;
Repair/replace as needed
24
e24
HPS oPen
The high pressure switch is open.
•
High pressure switch (HPS) inoperable
•
Check resistance on HPS to verify operation; Replace
if needed
25
e25
Air SenSor flt
The outdoor air temperature sensor
is open or shorted.
•
Faulty outdoor thermistor sensor or
disconnect
•
Inspect and test sensor; Replace sensor if needed
