Air-Con Multi Split
From Technical Support Wiki
This is the support page for the Air-Con multi split line.
Indoor Units
Outdoor Units
Possible Combinations
These are the recommended indoor-outdoor unit combinations.
| Zones | Outdoor Unit | Indoor Units | Indoor Units | Indoor Units | Indoor Units | Indoor Units | Indoor Units | Indoor Units | Indoor Units |
| Dual Zone | A16CM4H4R18 | A16EM4H4R09 | A16EM4H4R09 | A16EM4H4R18 | |||||
| A16EM4H4R09 | A16EM4H4R12 | ||||||||
| Tri Zone | A16CM4H4R24 | A16EM4H4R09 | A16EM4H4R09 | A16EM4H4R12 | A16EM4H4R09 | A16EM4H4R18 | |||
| A16EM4H4R09 | A16EM4H4R09 | A16EM4H4R12 | A16EM4H4R12 | ||||||
| A16EM4H4R09 | |||||||||
| Quad Zone |
|
A16EM4H4R09 | A16EM4H4R12 | A16EM4H4R12 | A16EM4H4R09 | A16EM4H4R18 | |||
| A16EM4H4R09 | A16EM4H4R12 | A16EM4H4R12 | A16EM4H4R09 | A16EM4H4R18 | |||||
| A16EM4H4R09 | A16EM4H4R12 | A16EM4H4R09 | A16EM4H4R18 | ||||||
| A16EM4H4R09 | |||||||||
| Quint Zone | A16CM4H4R42 | A16EM4H4R09 | |||||||
| A16EM4H4R09 | |||||||||
| A16EM4H4R09 | |||||||||
| A16EM4H4R09 | |||||||||
| A16EM4H4R09 | |||||||||
- Note: Each indoor unit combination is viewed as a column.
- Note: Both quad zone outdoor units are capable of the same combinations but make your judgement on the correct one to use based on room size.
- Note: There are more possible combinations than those listed above. Please use proper capacity judgment when making multi-split combinations.
Error Codes
| Error Item | Outdoor Unit 88 Display | Indicating LED Flashing Times | 88 Display | Error Type | ||
| Running LED | Cooling LED | Heating LED | ||||
| High Pressure Protection | E1 | Flash once | / | / | E1 | Outdoor |
| Shutdown for Whole Unit Anti-Freeze Protection | E2 | Flash twice | / | / | E2 | System Error |
| Low Pressure Protection | E3 | Flash 3 times | / | / | E3 | Outdoor |
| High Discharge Temp Protection | E4 | Flash 4 times | / | / | E4 | Outdoor |
| Communication Error | E6 | Flash 6 times | / | / | E6 | Outdoor & Indoor |
| Indoor Unit Water Full Error | E9 | Flash 9 times | / | / | E9 | Indoor |
| Refrigerant Recovery Mode | Fo | Flash once | Flash once | / | Fo | Special Mode |
| Outdoor Ambient Temp Sensor Error | F3 | / | Flash 3 times | / | F3 | Outdoor |
| Outdoor Mid-Coil Temp Sensor Error | F4 | / | Flash 4 times | / | F4 | Outdoor |
| Outdoor Discharge Air Temp Sensor Error | F5 | / | Flash 5 times | / | F5 | Outdoor |
| Oil Return for Cooling | F7 | / | Flash 7 times | / | F7 | Special Mode |
| Forced Defrosting | H1 | Quick Flashing | / | / | H1 | Special Mode |
| Oil Return for Heating or Defrosting | H1 | / | / | Flash once | H1 | Special Mode |
| Compressor Overheat Protection | H3 | / | / | Flash 3 times | H3 | Drive Error |
| IPM Protection | H5 | / | / | Flash 5 times | H5 | Drive Error |
| Motor Desynchronizing | H7 | / | / | Flash 7 times | H7 | Drive Error |
| PFC Error | Hc | / | / | Flash 6 times | Hc | Drive Error |
| Startup Failure | Lc | / | / | Flash 11 times | Lc | Drive Error |
| DC Fan Motor Error | LA | Flash 24 times | / | / | LA | Outdoor |
| Phase Loss | Ld | / | / | / | Ld | Drive Error |
| Compressor Stalling | LE | / | / | / | LE | Drive Error |
| Over-Speed | LF | / | / | / | LF | Drive Error |
| IPM Reset | P0 | / | / | / | P0 | Drive Error |
| Compressor Current Protection | P5 | / | / | Flash 15 times | P5 | Drive Error |
| Communication Error between the Inverter Drive and the Main Controller | P6 | Flash 16 times | / | / | P6 | Drive Error |
| Radiator Temp Sensor Error | P7 | / | / | Flash 18 times | P7 | Drive Error |
| Radiator Overheat | P8 | / | / | Flash 19 times | P8 | Drive Error |
| AC Contactor Protection | P9 | / | / | / | P9 | Drive Error |
| Sensor Connection Protection | Pd | / | / | / | Pd | Drive Error |
| Over Voltage Protection | PH | / | Flash 11 times | / | PH | Drive Error |
| Low Voltage Protection | PL | / | / | Flash 21 times | PL | Drive Error |
| Temp Drift Protection | PE | / | / | / | PE | Drive Error |
| Drive Board Ambient Temp Sensor Error | PF | / | / | / | PF | Drive Error |
| Charging Circuit Error | PU | / | / | Flash 17 times | PU | Drive Error |
| Unit n Communication Error | * | Flash 6 times | / | / | E6 | Indoor |
| Unit n Indoor Pipe Midway Temperature Sensor Error | * | / | Flash twice | / | E2 | Indoor |
| Indoor Evaporator Temp Sensor Short/Open Circuit | * | / | Flash twice | / | F2 | Indoor |
| (Air Valve) Unit n Indoor Unit Pipe Outlet Temperature Sensor Error | * | / | Flash 22 times | / | b7 | Indoor |
| (Liquid Valve) Unit n Indoor Unit Pipe Outlet Temperature Sensor Error | * | / | Flash 19 times | / | b5 | Indoor |
| Unit n Mode Conflict | * | / | Flash once | / | F1 | Indoor |
| Mode Conflict | * | Flash 7 times | / | / | E7 | Indoor |
Indoor Unit (*) Error Description
| Error Code | Error Description |
| 11 | Unit A Communication Error |
| 21 | Unit B Communication Error |
| 31 | Unit C Communication Error |
| 41 | Unit D Communication Error |
| 51 | Unit E Communication Error |
| 12 | Unit A Indoor Unit Pipe Midway Temperature Sensor Error |
| 22 | Unit B Indoor Unit Pipe Midway Temperature Sensor Error |
| 32 | Unit C Indoor Unit Pipe Midway Temperature Sensor Error |
| 42 | Unit D Indoor Unit Pipe Midway Temperature Sensor Error |
| 52 | Unit E Indoor Unit Pipe Midway Temperature Sensor Error |
| 13 | Unit A Indoor Unit Pipe Outlet Temperature Sensor Error |
| 23 | Unit B Indoor Unit Pipe Outlet Temperature Sensor Error |
| 33 | Unit C Indoor Unit Pipe Outlet Temperature Sensor Error |
| 43 | Unit D Indoor Unit Pipe Outlet Temperature Sensor Error |
| E3 | Unit E Indoor Unit Pipe Outlet Temperature Sensor Error |
| 14 | Unit A Indoor Unit Pipe Inlet Temperature Sensor Error |
| 24 | Unit B Indoor Unit Pipe Inlet Temperature Sensor Error |
| 34 | Unit C Indoor Unit Pipe Inlet Temperature Sensor Error |
| 44 | Unit D Indoor Unit Pipe Inlet Temperature Sensor Error |
| 54 | Unit E Indoor Unit Pipe Inlet Temperature Sensor Error |
| 15 | Unit A Indoor Ambient Temperature Sensor Error |
| 25 | Unit B Indoor Ambient Temperature Sensor Error |
| 35 | Unit C Indoor Ambient Temperature Sensor Error |
| 45 | Unit D Indoor Ambient Temperature Sensor Error |
| 55 | Unit E Indoor Ambient Temperature Sensor Error |
| 16 | Unit A Mode Conflict |
| 26 | Unit B Mode Conflict |
| 36 | Unit C Mode Conflict |
| 46 | Unit D Mode Conflict |
| 56 | Unit E Mode Conflict |
| 17 | Unit A Anti-Freezing Protection |
| 27 | Unit B Anti-Freezing Protection |
| 37 | Unit C Anti-Freezing Protection |
| 47 | Unit D Anti-Freezing Protection |
| 57 | Unit E Anti-Freezing Protection |
| C5 | Jumper Terminal Error |
Document Downloads
- Outdoor Unit User Manual
- Indoor Unit User Manual
- Outdoor Unit Service Manual
- Indoor Unit Service Manual
Warranty Information
Each Multi Split unit set has a warranty of 2 years for parts and 5 years for the compressor. If you need more information, please visit the Air-Con Warranty Policy page.