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17.4.30 F96 (Transistor Module Over-temperature Protection)
Troubleshooting
Diagnosis Procedures and Cause
Measures to be Taken
Heat radiation is not interrupted
No abnormality is observed
Heat radiation
is interrupted
Ventilation is
interrupted
Check if the ventilation of the outdoor unit is interrupted by dust, etc.
Check if the heat radiation by the heat sink of the outdoor unit control board
is interrupted by dust, etc.
Fix the problem.
Fix the interrupted heat radiation
problem.
Replace the outdoor unit control board.
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