Carrier 38GXM series Installation Instructions Manual page 13

38GXM030 Diagnostic Codes (Continued)
Number of Flashes On Outdoor Unit Board LED's
Equipment Fault
LED- LED- LED- LED- LED- LED- LED- LED- LED- LED1 LED2
D101 D102 D103 D104 D105 D106 D107 D108 D109
(Red) (Yellow) (Green) (Red) (Yellow) (Green) (Red) (Yellow) (Green) (Red) (Green)
Unit B Indoor Air Temperature Thermistor 5
Unit B Heating/Cooling Mode Conflict With
Other Indoor Units 6
Unit B Indoor Coil Freeze Protection 7
Unit B Indoor Coil High Temperature 8
Protection
Communication Error With Unit C 1
Unit C Mid Indoor Coil Temperature 2
Thermistor
Unit C Leaving Indoor Coil Temperature 3
Thermistor
Unit C Entering Indoor Coil Temperature 4
Thermistor
Unit C Indoor Air Temperature Thermistor 5
Unit C Heating/Cooling Mode Conflict With
Other Indoor Units 6
Unit C Indoor Coil Freeze Protection 7
Unit C Indoor Coil High Temperature 8
Protection
Communication Error With Unit D 1
Unit D Mid Indoor Coil Temperature 2
Thermistor
Unit D Leaving Indoor Coil Temperature 3
Thermistor
Unit D Entering Indoor Coil Temperature 4
Thermistor
Unit D Indoor Air Temperature Thermistor 5
Unit D Heating/Cooling Mode Conflict With
Other Indoor Units 6
Unit D Indoor Coil Freeze Protection 7
Unit D Indoor Coil High Temperature 8
Protection
Correct Communication Data 1
Normal Compressor Operation 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 During Start-Up 8
High Voltage Protection 9
IPM Module High Temperature Protection 10
Low Voltage Protection 11
IPM Module Detects Short Or Open Circuit 12
Failed Communication Between ID and OD
Units 1
Normal Communication 2
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