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6. Diagnostic code and trouble shooting
6.1.1. Diagnostic code for outdoor unit
Flash times of
LED on
mainboard
Trouble description
Analyze and diagnose
1
Eeprom failure
Outdoor main board eeprom fail
2
IPM failure
IPM failure
4
Communication error between main
board and spdu module SPDU
Communicition error
Communication fail over 4 min
5
High pressure protection
System high pressure over 4.15 Mpa
6
Module over-voltage protection(only for
Spdu)
Module lack-voltage protection(only for
Spdu)
Send from Spdu module
8
Compressor discharging temperature
protection
Compressor discharging temperature over 110
centigrade
9
Abnomal of DC motor
jam of DC motor or motor failure
10
Abnomal of pipe sensor
Piping sensor short-circuit or open-circuit
12
Abnomal of outdoor ambient sensor
Outdoor ambient sensor short-circuit or open-circuit
13
Abnormal of compressor dischage
sensor
Compressor discharging sensor short-circuit or
open-circuit
15
Communication error between indoor
and outdoor unit
Communication fail over 4 min
16
Lack of refrigerant
check if there is leakage in the unit
17
4-way valve reverse failure
Alarm and stop if detect Td-Tci<=15 last for 1min
after compressor has started for 10min in heating
mode, confirm the failure if it appears 3 times in one
hour.
18
Compressor jam (ony for spdu )
Inner compressor is abnormal jamed
19
Module EEV select circuit error
Module EEV select wrong circuit
25
Compressor U-phase over-current
The current of compressor U-phase is too high
25
Compressor V-phase over-current
The current of compressor V-phase is too high
25
Compressor W-phase over-current
The current of compressor W-phase is too high
45
Low pressure protection
System over pressure under 0.05Mpa
YHUJYH024BAR-A-X
122
Содержание YHKJXH012BAM--FX
Страница 34: ...Model W D H L1 L2 L3 YHUJYH024BAR A X 860 308 730 633 113 5 340 YHUJYH024BAR A X 34...
Страница 36: ...YHFJZH012BAM AFX YHFJZH018BAM AFX YHFJZH024BAR AFX 3 33 100 22 1 1 0 1 0 0 33 36...
Страница 39: ...800 1320 830 1200 170 270 250 365 185 250 60 45 1105 4 758 2 15 88 YHGJXH048 60BAR GX YHEJXH028 36 48BAR GX 39...
Страница 93: ...YHUJYH024BAR A X power module YHUJYH028 36BAR A X power module 93...
Страница 94: ...YHUJYH028 36BAR A X filter board YHUJYH028 36 48BAR A X YHUJYH048BAS A X YHUJYH060BAS A X PCB 0151800054A 94...
Страница 95: ...YHUJYH048BAS A X YHUJYH060BAS A X power module YHUJYH048BAS A X YHUJYH060BAS A X filter board 95...
Страница 96: ...YHUJYH048BAR A X filter board YHUJYH048BAR A X power module 96...
Страница 111: ...5 2 Indoor unit 5 2 1 PCB 0151800106 for 28 36 48 60 indoor unit 111 YHDJXH018BAM GX...
Страница 151: ...151...