MCAC-UTSM-2008-04
Troubleshooting
Outdoor Units
55
9. P4 malfunction
LED indicates P4
Compressor discharge temperature protection
Check whether the compressor discharge temp. more than 115
°
C ?
No
Check whether the wiring connection is right
between compressor discharge temp.
sensor and PCB according to wiring
diagrams
Yes
Validate: Check whether the resistance of compressor
discharge temp. sensor is right refer to the Annex 2
No
Correct the wiring connection
Yes
Replace outdoor main board
Judge: The discharge temp. sensor is broken
No
Replace the compressor
discharge temp. sensor
Check whether the refrigerant is leakage
Stop leaking and add refrigerant
Yes
Yes
文件使用
"pdfFactory Pro"
试用版本创建
www.fineprint.cn
Summary of Contents for ACP-12CT32AEI/I
Page 1: ...ACP 12CT32AEI I ACP 12CT32AEI O RoHS Service manual ENG ...
Page 2: ......
Page 59: ......
Page 60: ......
Page 61: ......