A16EW4H4R18
From Technical Support Wiki
A16EW4H4R18 is the 22-21 SEER, 18,000 BTU indoor unit for the Air-Con Multi Splits.
Remote Control
| # | Name | Description |
| 1 | ON/OFF | Press to start or stop operation |
| 2 | MODE | Press to select operation mode (Auto/Cool/Dry/Fan/Heat) |
| 3 | + (Raise) | Press to raise the temperature setting |
| 4 | - (Lower) | Press to lower the temperature setting |
| 5 | FAN | Press to set fan speed |
| 6 | SWING ANGLE | Press to set swing angle |
| 7 | TIMER ON | Press to set auto-on timer |
| 8 | TIMER OFF | Press to set auto-off timer |
| 9 | CLOCK | Press to set clock |
| 10 | X-FAN | Pressing X-FAN button in COOL or DRY mode, the icon is displayed and the indoor fan will continue operation for 10 minutes in order to dry the indoor unit even though you have turned off the unit. |
| 11 | TEMP | Press to cycle through Set Temp/Indoor Ambient Temp/Outdoor Ambient Temp |
| 12 | TURBO | Press to initiate the "Turbo" funciton |
| 13 | SLEEP | Press to initiate Sleep mode |
| 14 | LIGHT | Press to turn on/off backlight |
Error Codes
| Malfunction Name | Dual-8 Nixie tube | Indicator | ||
| Operation Indicator | Cooling Indicator | Heating Indicator | ||
| Malfunction of jumper cap | C5 | blink 15 times | ||
| No feedback from indoor unit's motor | H6 | blink 11 times | ||
| Circuit malfunction of zero crossing detection | U8 | blink 17 times | ||
| Indoor ambient temperature sensor is open/short-circuited | F1 | blink once | ||
| Indoor evaporator temperature sensor is open/short-circuited | F2 | blink twice | ||
| Liquid valve temperature sensor is open/short-circuited | b5 | blink 19 times | ||
| Gas valve temperature sensor is open/short-circuited | b7 | blink 22 times | ||
| Module temperature sensor is open/short-circuited | P7 | blink 18 times | ||
| Outdoor ambient temperature sensor is open/short-circuited | F3 | blink 3 times | ||
| Outdoor condenser tube temperature sensor is open/short-circuited | F4 | blink 4 times | ||
| Outdoor discharge temperature sensor is open/short-circuited | F5 | blink 5 times | ||
| Communication malfunction in between indoor and outdoor units. | E6 | blink 6 times | ||
| Malfunction of phase current circuit detection for compressor | U1 | blink 12 times | ||
| Module temperature protection | P8 | blink 19 times | ||
| Charging malfunction of capacitor | PU | blink 17 times | ||
| High pressure protection of system | E1 | blink once | ||
| Overload protection of compressor | H3 | blink 3 times | ||
| Wrong connection for communication wire or malfunction of expansion valve (free match) | dn | / | / | / |
| Wrong connection for communication wire or malfunction detection status of expansion valve (free match) | dd | / | / | / |
| Mode shock | E7 | blink 7 times | ||
| Freon recovery mode | Fo | blink once | blink once | |
| Defrosting and oil return under heating | H1 | blink once | ||
| Failure start-up of compressor | Lc | blink 11 times | ||
| Discharge high-temperature protection of compressor | E4 | blink 4 times | ||
| Overload protection | E8 | blink 8 times | ||
| Overcurrent protection of complete unit | E5 | blink 5 times | ||
| Overcurrent protection of phase current | P5 | blink 15 times | ||
| Desynchronizing of compressor | H7 | blink 7 times | ||
| Loss phase/inverse phase protection for compressor | Ld | / | / | / |
| Module current protection (IPM protection) | H5 | blink 5 times | ||
| Low voltage protection of DC bus bar | PL | blink 21 times | ||
| High voltage protection of DC bus bar | PH | blink 11 times | ||
| PFC protection | HC | blink 6 times | ||
| Limit/decrease frequency due to current protection of the complete unit | F8 | blink 8 times | ||
| Limit/decrease frequency due to module current protection (phase current) | En | / | / | / |
| Limit/decrease frequency due to discharge | F9 | blink 9 times | ||
| Limit/decrease frequency due to freeze protection | FH | blink 2 times | blink 2 times | |
| Limit/decrease frequency due to overload | F6 | blink 6 times | ||
| Limit/decrease frequency due to module temperature protection | EU | blink 6 times | blink 6 times | |
| Oil return under cooling | F7 | blink 7 times | ||
| Cold air prevention protection | E9 | blink 9 times | ||
| Freeze protection | E2 | blink 2 times | ||