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Troubleshooting
TROUBLESHOOTING
Due to our policy of continuous product innovation, some specifications may change without notification.
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LED 2
(TENS PLACE)
Receiver
LED 1
(UNITS PLACE)
Table 25: Mega 115V HXV Single Zone Wall Mounted Indoor Unit Error Codes.
Error
Code
Description
No. of Times Indoor Unit
LEDs Blink
LED1
(Units Place)
LED2
(Tens Place)
1 Indoor unit room temperature sensor error 1X -
2 Indoor unit inlet pipe sensor error 2X -
4 Float switch error (optional) 4X -
5 Communication error between indoor unit and outdoor units 5X -
6 Indoor unit outlet pipe sensor error 6X -
9 Indoor unit EEPROM error 9X -
10 Indoor unit BLDC motor fan lock - 1X
12 Indoor unit middle pipe sensor error 2X 1X
21 DC Peak (IPM Fault); Compressor DC voltage was too high 2X 1X
22 Current Transformer2 (CT2) error; Alternating current (AC) input too high 2X 2X
23 DC Link Low Volt 2X 3X
25 AC Low/High Volt 2X 5X
26 DC Comp Position Error (not providing rotation), Locking 2X 6X
27 PSC Fault; Current to inverter compressor between AC and DC converter circuit too high 2X 7X
28 Inverter compressor DC voltage is too high 2X 8X
29 Inverter compressor amperage is too high 2X 9X
31 Current-to-current transformer (CT) thermistor is too low 3X 1X
32 Inverter Compressor Discharge Pipe (D-Pipe) Overheat 3X 2X
40 CT Sensor Error; Thermistor is disconnected or shorted out 4X -
41 D-Pipe Sensor INV is disconnected or shorted out 4X 1X
44 Outdoor Air Sensor is disconnected or shorted out 4X 4X
45 Middle thermistor of outdoor unit condenser coil is disconnected or shorted out 4X 5X
46 Outdoor unit suction line thermistor is disconnected or shorted out 4X 6X
48 Outdoor unit coil outlet (liquid line) thermistor is disconnected or shorted out 4X 8X
53 Communication failure from outdoor unit to indoor unit 5X 3X
60 Outdoor unit printed circuit board (PCB) EEPROM check sum error 6X -
61 Outdoor unit condenser coil temperature is too high 6X 1X
62 Outdoor unit inverter compressor PCB heat sink temperature is too high 6X 2X
63 Condenser coil pipe thermistor temperature is too low 6X 3X
65 Heat sink thermistor has disconnected or has shorted out 6X 5X
67 Outdoor brushless direct current (BLDC) fan motor lock error 6X 7X
Error Codes
Mega 115V HXV Single Zone Wall Mounted Indoor Unit Error Codes
Figure 136: Mega 115V HXV Error Code Display LEDs.
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