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71
Fault Displays
Models
MULTI18HP230V1AO
,
MULTI24HP230V1
A
O
&
MULTI30HP230V1
A
O
#
Malfunction Description
LED 1
LED 2
LED 3
LED 4
0
Normal stop
1
Compressor run
2
Compressor overload protection
3
Discharge protection
4
Outdoor unit overload protection
5
High pressure protection
6
Over current protection
7
IMP protection
8
IMP over heating protection
9
PFC protection (including PFC overheating
protection)
10
Phase current protection
11
Over voltage protection
12
Insufficient voltage protection
13
Start failure
14
Compressor desynchronizing
15
Compressor phase-lacking protection
16
Compressor phase current detection malfunction
17
Memory chip mistake
18
DC power supply circuit-short
19
Defrosting
20
Oil return
21
Complete unit frequency restriction protection
22
Complete unit frequency dropping protection
23
Unit A frequency restriction or frequency drop-
ping protection
24
Unit B frequency restriction or frequency drop-
ping protection
25
Unit C frequency restriction or frequency drop-
ping protection
26
Unit D frequency restriction or frequency drop-
ping protection
27
Outdoor ambient temperature sensor protection
28
Outdoor tube temperature sensor protection
29
Discharge temperature sensor protection
30
IPM thermal resistance malfunction
Note:
Off
On
Blink
Multiple malfunctions will be displayed every 5 seconds