Carrier High Wall Duct Free Split System 38MVC Service Manual page 26

CHART 1 - - INDOOR FAN SPEED OUT OF CONTROL
Reset main power and Reset main power and
restart system using remote. restart system using remote.
Problem persists? Problem persists?
Yes Yes
Check motor connection. Check motor connection.
Connection good? Connection good?
Yes Yes
Check IFM output and input
on indoor board.
Values good?
Yes Yes
Replace indoor fan motor Replace indoor fan motor
No No
No further action is No further action is
required required
No No
Fix connection Fix connection
No No
Replace indoor board Replace indoor board
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