Service Manual
2. M alfunction o f B locked P ro tection o f IDU Fan M otor H6
Main detection points:
• Smoothlyls the control terminal of PG motor connected tightly?
• Smoothlyls the feedback interface of PG motor connected tightly?
• The fan motor can't operate?
• The motor is broken?
• Detectioncircuit of the mainboard is defined abnormal?
Malfunction diagnosis process:
/-■''Under power-off condition>--
check whether the wiring terminal
between indoor fan and main
board is loose.
Reinsert the wiring
terminal of indoor fan.
Turn unit on "
to check whether the "
malfunction is
eliminated.
70
• • • «
Installation and Maintenance
No
To Next Page
Loading...
