Carrier 40GXM series User Manual

TROUBLESHOOTING
This unit has onboard diagnostics. Error codes are displayed on the outdoor unit microprocessor board with colored LED lights. The table
below lists the error codes.
38GM018-024 Diagnostic Codes
Number of Flashes On Outdoor Unit Board LED's
Equipment Fault LED- LED- LED- LED- LED- LED- LED-
D101 D102 D103 D104 D105 D106 D108 LED1 LED2
(Green) (Red) (Yellow) (Yellow) (Red) (Green) (Green) (Red) (Green)
High Compressor Discharge Pressure Protection 2
High Leaving Outdoor Coil Air Temperature 3
Protection
Communication Error 4
IPM Module Protection 5
Compressor Over Current Protection 6
High Outdoor Coil Temperature Protection 7
Indoor Coil High Temperature Protection 8
Indoor Coil Freeze Protection 9
Failed Sensor 10
Compressor Overload Protection 11
Low Compressor Discharge Pressure Protection 12
Compressor Motor Phase Imbalance Protection
(Compressor Stops) 13
EEPROM Error 14
Power Factor Correction Board Capacitor Charge 15
Failure
Communication Error With Unit A 1
Unit A Mid Indoor Coil Temperature Thermistor 2
Unit A Leaving Indoor Coil Temperature Thermistor 3
Unit A Entering Indoor Coil Temperature Thermistor 4
Unit A Indoor Air Temperature Thermistor 5
Unit A Heating/Cooling Mode Conflict with Unit B 6
Unit A Indoor Coil Freeze Protection 7
Unit A Indoor Coil High Temperature Protection 8
Communication Error With Unit B 1
Unit B Mid Indoor Coil Temperature Thermistor 2
Unit B Leaving Indoor Coil Temperature Thermistor 3
Unit B Entering Indoor Coil Temperature Thermistor 4
Unit B Indoor Air Temperature Thermistor 5
Unit B Heating/Cooling Mode Conflict with Unit B 6
Unit B Indoor Coil Freeze Protection 7
Unit B Indoor Coil High Temperature Protection 8
Defrost Mode 9
Oil Return Mode 6
Outdoor Air Temperature Thermistor 1
Outdoor Coil Temperature Thermistor 2
Leaving Outdoor Coil Air Temperature Thermistor 3
Driver Board Communications Error 5
Normal Communication Between Ind. and OD Units 1
Compressor Speed Sensor Failure 2
(Compressor Stops)
IPM Module Protection 3
Inverter Failure 4
PFC Module Protection 5
Lock-Out Mode 6
Start-Up Failure 7
Low Voltage Protection 8
High Voltage Protection 9
IPM Module High Temperature Protection 10
Failed Communication Between ID and OD Units Light
11

Carrier 40GXM series Specifications

General

Brand	Carrier
Model	40GXM series
Category	Air Conditioner
Language	English