Protection and Failure Display
- When protection display is available, controller will show error code, digital LED shows error code and setting temperature by turns.
- If there is more than one failure, it will show at first that in front of the error list.
- Protection display function can be selected in hardware, and the default don’t display;
- To insure of in and out communist is credibility, the failures relate to outdoor unit will remain failure state for 2 minutes max after recovered.
- In all failures, only sensor failures don’t have to repower to cancel.
Error List
Error Code | Led Code | Failure Type |
---|---|---|
E0 | RUN, TIMER–both winking | In and out communication failure |
EC | RUN, TIMER–both winking | Outdoor communication failure |
E1 | RUN-1 time/8s | Outdoor sensor |
E2 | RUN-2 times /8s | Indoor coil temperature sensor |
E3 | RUN-3 times /8s | Outdoor coil temperature sensor |
E4 | RUN-4 times /8s | System abnormity |
E5 | RUN-5 times /8s | Type mismatch |
E6 | RUN-6 times /8s | Indoor fan motor |
E7 | RUN-7 times /8s | Outdoor temperature sensor |
E8 | RUN-8 times /8s | Discharge temperature sensor |
E9 | RUN-9 times /8s | Invert module abnormity |
EF | RUN-10 times /8s | Outdoor fan motor (DC) |
EA | RUN-11 times /8s | Current sensor |
EE | RUN-12 times /8s | EEPROM failure |
EP | RUN-13 times /8s | Top of compressor temperature switch |
EU | RUN-14 times /8s | Voltage sensor |
Protection Display Code List | ||
P1 | RUN-winking,TIMER-1 time/8s | higher or lower voltage |
P2 | RUN- winking,TIMER-2 times /8s | Over current |
P4 | RUN- winking,TIMER-4 times /8s | Discharge temperature |
P5 | RUN-light,TIMER-5 times /8s | Over cooling in cooling mode |
P6 | RUN- light,TIMER-6 times /8s | Over heating in cooling mode |
P7 | RUN- light,TIMER-7 times /8s | Over heating in heating mode |
P8 | RUN- light,TIMER-8 times /8s | Outdoor temperature too high or low |
P9 | RUN- winking,TIMER-9 times/8s | Drive protection (Overload) |
P0 | RUN- winking,TIMER-10 times/8s | Module self protection |
Outdoor Failure Display
There is a LED on outdoor power board, when compressor is running; it is normally light; when no feedback of signal to power board from compressor, it will wink by lighting 1s and going out 1s. If failures happened, it will light 0.5s, go out 0.5s, winking several times and go out 3s for a cycle to indicate failures. The failure list is the follow:
Wink time | Failure |
---|---|
1 | IPM protection |
2 | higher or lower voltage |
3 | Over current |
4 | Discharge temperature too high |
5 | Outdoor coil temperature too high |
6 | Drive abnormity |
7 | Communication abnormity with indoor unit |
8 | Compressor over heat(switch on top of compressor) |
9 | Outdoor air temperature sensor failure |
10 | Outdoor coil temperature sensor failure |
11 | Outdoor discharge pipe temperature sensor failure |
12 | Voltage sensor failure |
13 | Current sensor failure |
14 | IPM abnormity |
15 | Outdoor communication abnormity |
16 | DC fan motor no feedback |
17 | defrosting |
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