10
Test Operation & Troubleshooting & Maintenance
4�1�5 Compressor Startup Failure(code:"LC")
"Start failure" is
displayed on the
wired controller
LC is displayed in
the mainboard 88
indicating lamp
Replace
the
driver board AP4.
Does it work Normally?
Replace
the compressor
Work Normally
yes
no
4�1�6 Compressor Current Protection (Code:"P5"); Compressor Motor Desynchronizing (Code:"H7");
IPM Protection (Code:"H5"); Phase Loss (Code:"LD")
"Start failure" is
displayed on the
wired controller
LC is displayed in
the mainboard 88
indicating lamp
Replace the mainboard.
Does it work Normally?
Replace the mainboard.
Does it work Normally?
Replace the mainboard.
Does it work Normally?
Replace the mainboard.
Does it work Normally?
LC is displayed in
the mainboard 88
indicating lamp
LC is displayed in
the mainboard 88
indicating lamp
LC is displayed in
the mainboard 88
indicating lamp
yes
no
yes
no
no
yes
Summary of Contents for Versati II Series
Page 18: ......
