Error Code And Trouble Shooting; Overload Of Compressor Or Fan In #2 - Daikin UHA075B5 Catalogue/Engineering Data

Error Code and Trouble Shooting

Error code on wired controller
When the unit has failure alarm, wired controller will display the error code.
Alarm display has two parts, A is error code, B is unit number.
If the unit has 2-way valve interlocking function on, when the unit interlocked by 2-way valve, wired controller
display "SA".
S/N Code
1 F6
2 01~15
3 16
4 17
5 18
6 19
7 20
8 21
9 22
10 23
11 24
12 25
13 26
14 27
15 28
16 29
17 30
18 31
19 32
20 33
21 34
22 35
23 36
46
Symptoms
Communication failure with master unit
1# ~15# slave communication failure
Overload of compressor or fan in #1

Overload of compressor or fan in #2

Overload of pump
Lack of water flow
High pressure of #1
Low pressure of #1
Dicharge superheat of #1 is too low
Dicharge superheat of #2 is too low
High pressure of #1
Reserved
Overload of water system heater
Ambient temperature too high/low
Reserved
Superheat of #1 is too low
Reserved
Communication failure with master unit
Suction temperature #1 is too high
Discharge temperature #1 is too high
Suction temperature #2 is too high
Discharge temperature #2 is too high
Low pressure of #2
S/N Code
24 37 Superheat of #2 is too low
25 38 Refrigerant leakage in #1
26 39 Refrigerant leakage in #2
TH1 temperature sensor
27 40
malfunction
TH2 temperature sensor
28 41
malfunction
TH3 temperature sensor
29 42
malfunction
TH4 temperature sensor
30 43
malfunction
TH5 temperature sensor
31 44
malfunction
TH6 temperature sensor
32 45
malfunction
TH7 temperature sensor
33 46
malfunction
TH8 temperature sensor
34 47
malfunction
TH9 temperature sensor
35 48
malfunction
TH10 temperature sensor
36 49
malfunction
TH11 temperature sensor
37 50
malfunction
TH12 temperature sensor
38 51
malfunction
Low pressure sensor malfunction
39 52
of #2
Low pressure sensor malfunction
40 53
of #1
41 54 Memory failure
Water tank temperature too high/
42 55
low
43 56 Water level switch malfunction
44 57 EWT/LWT too high
45 58 Anti-freezing protection
46 60 No system can start up
Symptoms