71
Fault Displays
Models MULTI18HP230V1AO,
MULTI24HP230V1AO & MULTI30HP230V1AO
# Malfunction Description LED 1 LED 2 LED 3 LED 4
0 Normalstop
1 Compressorrun
2 Compressoroverloadprotection
3 Dischargeprotection
4 Outdoorunitoverloadprotection
5 Highpressureprotection
6 Overcurrentprotection
7 IMPprotection
8 IMPoverheatingprotection
9
PFCprotection(includingPFCoverheating
protection)
10 Phasecurrentprotection
11 Overvoltageprotection
12 Insucientvoltageprotection
13 Startfailure
14 Compressordesynchronizing
15 Compressorphase-lackingprotection
16 Compressorphasecurrentdetectionmalfunction
17 Memorychipmistake
18 DCpowersupplycircuit-short
19 Defrosting
20 Oilreturn
21 Completeunitfrequencyrestrictionprotection
22 Completeunitfrequencydroppingprotection
23
UnitAfrequencyrestrictionorfrequencydrop-
pingprotection
24
UnitBfrequencyrestrictionorfrequencydrop-
pingprotection
25
UnitCfrequencyrestrictionorfrequencydrop-
pingprotection
26
UnitDfrequencyrestrictionorfrequencydrop-
pingprotection
27 Outdoorambienttemperaturesensorprotection
28 Outdoortubetemperaturesensorprotection
29 Dischargetemperaturesensorprotection
30 IPMthermalresistancemalfunction
Note: O On Blink
Multiple malfunctions will be displayed every 5 seconds