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11.2.11 Indoor PCB /Display board communication error (E7)
Error Code
E7
Malfunction decision
conditions
Indoor PCB does not receive feedback from Display board.
Supposed causes
●
Wiring mistake
●
PCB faulty
●
Display board malfunction
Trouble shooting:
Power off, then restart the unit
2 minutes later.Is it still
displaying the error code?
Replace the indoor main
PCB.Is the error extinguished?
Yes
Replace the Display board
Check the wirings
and connection. Are all
the connections good?
Yes
No
Correct the connection
or replace the wirings
No
Summary of Contents for P9VI32-09WF
Page 12: ...10...
Page 13: ...11...
Page 17: ...15...
Page 31: ...29 8 Wiring Diagram 8 1 Indoor Unit P9VI32 09WF P9VI32 12WF P9VI32 18WF P9VI32 24WF...
Page 32: ...30 8 2 Outdoor Unit P9VO32 09 P9VO32 12...
Page 33: ...31 P9VO32 18 P9VO32 24...
Page 44: ...42 Reserve 5 25...