ASCON Service Guide Book
78
Error Diagnosis by Wired Controller (MC301)
ITEM CODE DESCRIPTION
1 E0 System malfunction
2 E1 Sensor Broken (TH1 discharge Temp.)
3 E2 Sensor Broken (TH2 inlet coil 1#)
4 E3 Sensor Broken (TH3 mid coil 1#)
5 E4 Sensor Broken (TH4 inlet coil 2#)
6 E5 Sensor Broken (TH5 mid coil 2#)
7 E6 Sensor Broken (TH6 inlet coil 3#)
8 E7 Sensor Broken (TH7 mid coil 3#)
9 E8 Sensor Broken (TH8 ambient temp)
10 E9 Sensor Broken (TH9 outlet coil)
11 EA Sensor Broken (TH10 subcool outlet)
12 EB Sensor Broken (TH11 subcool suction)
13 EC Sensor Broken (TH12 suction)
14 EF Emergency Run
15 F0 Outdoor Storage Malfunction
16 F1 Sensor Broken (indoor inlet coil)
17 F2 Sensor Broken (indoor mid coil)
18 F3 Sensor Broken (indoor outlet coil)
19 F4 Sensor Broken (indoor return air)
20 F5 Sensor Broken (indoor supply air)
21 F6 Indoor and controller communication malfunction
22 F7 Ambient temp exceed the limit
23 F8 4WV malfunction
24 F9 Refrigerant leakage
25 FA Controller storage malfunction
26 FB Water Pump (indoor water pump)
27 FC Indoor and outdoor communication malfunction
28 FE Outdoor master and slave communication malfunction
29 H0 Digital comp overload
30 H1 Fixed Comp1 overload
31 H2 Fixed Comp2 overload
32 H3 Fixed Comp3 overload
33 H4 High pressure too high
34 H5 Sensor broken, high pressure
35 H6 Discharge temp too high
36 L0 Super heat too low
37 L1 Low pressure too low
38 L2 Sensor broken, low pressure
39 10 System malfunction
40 11 Sensor broken (slave TH1 discharge temp)
41 12 Sensor broken (slave TH2 inlet coil 1#)
42 13 Sensor Broken (slave TH3 mid coil 1#)
43 14 Sensor broken (slave TH4 inlet coil 2#)
44 15 Sensor broken (slave TH5 mid coil 2#)
45 16 Sensor broken (slave TH6 inlet coil 3#)
46 17 Sensor broken (slave TH7 mid coil 3#)
47 18 Sensor broken (slave TH8 ambient temp)
48 19 Sensor broken (slave TH9 outlet coil)
49 1A Sensor broken (slave TH10 subcool outlet)
50 1B Sensor broken (slave TH11 subcool suction)
51 1C Sensor Broken (slave TH12 suction)
52 1F Emergency run (slave)
53 20 Outdoor storage (slave)
54 27 Ambient temp exceed the limit (slave)
55 28 4WV malfunction (slave)
56 29 Refrigerant leakage (slave)
57 30 Digital comp overload (slave)
58 31 Fixed comp1 overload (slave)
59 32 Fixed comp2 overload (slave)
60 33 Fixed comp 3 overload (slave)
61 34 High pressure too high (slave)
62 35 Sensor broken, high pressure (slave)
63 36 Discharge temp too high (slave)
64 40 Super heat too low (slave)
65 41 Low pressure too low (slave)
66 42 Sensor broken, low pressure (slave)
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