199
Failure code
Outdoor
digital
display tube:
52-0,1,2,3
Indoor wired
controller:
34
Indoor unit LED status
LED5
Failure description:
LEVa1,2 and LEVb,c open circuit
20 times
Outdoor unit LED status
LED1
LED2
Normal
Normal
1. Model
Diagnosis and troubleshooting
MRV 5-RC series
Diagnosis
Troubleshooting
2. Abnormity detection method
◆
LEV driver chip detection
3. Abnormity confirmation
conditions
LEV driver chip detection
4. Possible causes
◆
The electronic expansion
valve coil connector is
disengaged or misplaced
◆
Electronic expansion valve
coil harness breaks
◆
LEV drive circuit is open
Reconnected by after-sales
personnel on site.
Check if the electronic expansion
valve coil terminal plug well
Check if the electronic expansion
valve coil harness, the terminal is
good
Check whether the PCB LEV
circuit is damaged
R e p l a c e t h e e l e c t r o n i c
expansion valve coil by after-
sales personnel on site.
Replace PCB
N
N
Y
Y
Y
Содержание MRV 5-RC AB052MAERA
Страница 1: ...MRV 5 RC Service Manual SYJS 03 2019REV A Edition 2019 03 ...
Страница 3: ......
Страница 55: ...52 AV08 10 12 14IMVURA 4 Center of gravity x X 347 9587 y 471 5454 z 725 6683 y z ...
Страница 56: ...53 AV16 18 20 22IMVURA x X 650 5962 y 380 7255 z 706 5342 y z ...
Страница 106: ...103 2 Dimension 4 19 200 60 25 25 25 249 108 232 84 69 388 73 82 65 103 177 4 44 4 35 277 ...
Страница 116: ...113 2 Preparation before installation ...
Страница 130: ...127 2 Dimension 290 67 410 220 567 137 160 189 57 144 109 159 159 212 393 4 22 65 65 65 65 65 44 65 76 4 52 67 156 830 ...
Страница 162: ...159 One by one valve box PCB code 0151800186A 2 Valve box PCB photo and dip switch setting ...
Страница 165: ...162 One by four valve box PCB code 0151800466 ...