137
ENGLISH
Hint
Error
Code
Indoor Device
ERV or ERV DX
AWHP(Hydro kit)
AHU
20
ೳ
ERV DX Main
PCB
ȥ
Sub PCB
communication error
Elec/heater error
ೳ
Outdoor Unit Errors
Error
Code
Description
21
DC peak
22
Max ct (CT 2): Maximum current error
23
DC link voltage (low)
24
High voltage/heat plate SW
25
Under-voltage/over-voltage
26
DC comp position error
27
PSC fault error
28
DC link voltage (high)
29
Comp over-current
30
Surge in static speed #2 compressor discharge temperature
31
CT err (low current)
32
Inverter discharge temperature error (high)
33
Surge in static speed #1 compressor discharge temperature
34
Surge in high voltage
35
Drop in low voltage
36
Low compression ratio error
37
Compression ratio limit exceeded
39
Communication error (inverter
ȧ
PFC)
40
Inverter CT sensor open/short
41
Inverter discharge temperature sensor open/short
42
Low voltage sensor open/short
43
Heat exchanger temperature sensor (top)
44
Outdoor air temperature sensor open/short
45
Outdoor pipe (top) sensor open/short
46
Compressor suction temperature sensor open/short
47
Static speed #1 compressor discharge temperature sensor error
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