Tr
oubleshooting
Page 79
5.7 E7 (Indoor PCB /Display board communication error)
Description
: Indoor PCB does not receive feedback from Display board for 120 seconds.
Recommended parts to prepare:
• Wiring mistake
• Faulty PCB
• Display board malfunction
Troubleshooting and repair:
Power off, then restart the unit
2 minutes later.
Is it still displaying
the error code?
Check the wirings and
connection.
YES
The unit is operating normally.
NO
Are all the
connections
good?
Correct the connection
or replace the Wirings.
NO
Replace the indoor main
PCB.
YES
Is the error
extinguished?
Replace the Display board.
NO
Содержание TS2MVI32-09
Страница 1: ...ENGLISH SERVICE MANUAL TS2ΜVI32 09 TS2MVO32 09 TS2ΜVI32 12 TS2MVO32 12 ...
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Страница 5: ...Contents 1 Precautions 2 2 Information servicing 3 Safety Precautions ...
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