Amana AVXC20 Series User Manual

70
TROUBLESHOOTING
OUTDOOR UNIT ERROR CODES
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 pressure
faults.
● Blocked/restricted condenser coil and/or
lines
● Stop valve not completely open
● Overcharge
● Outdoor fan not running
● High pressure switch (HPS) inoperable
● Faulty TXV
● 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 the adjustment of TXV; Replace if needed
● Replace control board if necessary
14 -
HI PRESSURE M
(M = MINOR)
This error indicates the equipment is
experiencing frequent high pressure
faults. Control has determined continued
operation is acceptable. This indicates
they may be a problem 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 TXV
● 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 the adjustment of TXV; Replace if needed
● Replace control board if necessary
15 E15 LOW PRESSURE C
This error indicates the equipment is
experiencing frequent low pressure
faults.
● Stop valve not completely open
● Restriction in refrigerant lines
● Low refrigerant charge
● Refrigerant leak
● Low pressure sensor inoperable or not
properly connected
● Faulty TXV
● Indoor fan motor not functioning correctly
● 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 sys tem leaks using leak test procedure
● Check the connection to low pressure sensor;
Repair/replace if needed
● Check the adjustment of TXV; 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 pressure
faults. Control has determined continued
operation is acceptable. This indicates
they may be a problem 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
● Faulty TXV
● Indoor fan motor not functioning correctly
● 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 sys tem leaks using leak test procedure
● Check the connection to low pressure sensor;
Repair/replace if needed
● Check the adjustment of TXV; 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 compressor 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
● 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
● 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 discharge
superheat faults.
● Thermistors inoperable or improperly
connected
● Faulty TXV
● Faulty control board
● Check the connection to thermistors; Repair/replace if
needed
● Check the adjustment of TXV; 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 on
correct position.
● 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 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 -
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
26 E26 PRESSURE SENSOR
The control determines that the pressure
sensor is not reacting properly.
● Low pressure sensor inoperable or not
properly connected
● Check the connection to low pressure sensor;
Repair/replace if needed
28 E28 COIL TEMP FAIL2
The control has detected that the
Outdoor Coil Temperature Sensor is out
of range.
● Outdoor coil thermistor inoperable or not
properly connected
● Check the connection to OD coil thermistor;
Repair/replace if needed
29 E29 LIQ TEMP FAIL
The control has detected that the Liquid
Temperature Sensor is out of range.
● Liquid thermistor inoperable or not properly
connected
● Check the connection to liquid thermistor;
Repair/replace if needed

Amana AVXC20 Series Specifications

General

Brand	Amana
Model	AVXC20 Series
Category	Air Conditioner
Language	English