Carrier 38GVM Series, Руководство по обслуживанию

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32
TROUBLESHOOTING CONTINUED
Malfunction Indicator
Note:
○
: off
●
: on : blink
When several malfunctions occur at the same time, they will be displayed in circulation and every malfunction is
displayed for 5s.
NO Malfunction description LED1 LED2 LED3 LED4
0 Normal stop operation
○ ○ ○ ○
1 Normal compressor operation
● ○ ○ ○
2 Compressor overload protection
○ ○ ○
3 Discharge temperature protection
○ ● ○ ○
4 Outdoor unit overload protection
● ● ○ ○
5 High pressure protection
● ○ ○
6 Over current protection
○ ○ ○
7 IPM protection
● ○ ○
8 IPM over heating protection
○ ○
9 PFC protection (including PFC overheating protection)
○ ○ ● ○
10 Phase protection
● ○ ● ○
11 High voltage protection
○ ● ○
12 Low voltage protection
○ ● ● ○
13 Start failure
● ● ● ○
14 Compressor desynchronizing
● ● ○
15 Compressor phase-drop protection
○ ● ○
16 Compressor phase detection malfunction
● ● ○
17 Memory chip malfunction
● ○
18 DC power supply short circuit
○ ○ ○
19 Normal defrost operation
● ○ ○
20 Normal oil return operation
○ ○
21 Complete unit frequency reduction protection
○ ● ○
22 Complete unit frequency reduction protection
● ● ○
23 Unit A frequency restriction or frequency reduction protection
● ○
24 Unit B frequency restriction or frequency reduction protection
○ ○
25 Unit C frequency restriction or frequency reduction protection
● ○
26 Unit D frequency restriction or frequency reduction protection
○
27 Outdoor ambient temperature sensor malfunction
○ ○ ○ ●
28 Outdoor tube temperature sensor malfunction
● ○ ○ ●
29 Discharge temperature sensor malfunction
○ ○ ●
30 IPM thermal resistance malfunction
○ ● ○ ●
31 Unit A liquid pipe temperature sensor malfunction
● ● ○ ●
32 Unit A gas pipe temperature sensor malfunction
● ○ ●
33 Unit B liquid pipe temperature sensor malfunction
○ ○ ●
34 Unit B gas pipe temperature sensor malfunction
● ○ ●
35 Unit C liquid pipe temperature sensor malfunction
○ ●
36 Unit C gas pipe temperature sensor malfunction
○ ○ ● ●
37 Unit D liquid pipe temperature sensor malfunction
● ○ ● ●
38 Unit D gas pipe temperature sensor malfunction
○ ● ●
39 Unit A mode conflict
○ ● ● ●
40 Unit B mode conflict
● ● ● ●
41 Unit C mode conflict
● ● ●
42 Unit D mode conflict
○ ● ●