Carrier 38MVC, 38MVQ, 40MVC, 40MVQ CHART 2 -- TEMPERATURE SENSOR

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CHART 2 -- TEMPERATURE SENSOR
Reset main power and
restart system using remote.
Problem persists?
Appendix 6
No further action is
required
No
Yes
Check input and output
on indoor or outdoor board.
Yes
Check sensor connector
at ID or OD board
Connection good?
No
Fix connection
Yes
No
Replace board
Check sensor resistance.
No
Yes
Yes
No
Yes
No
No
Replace sensor
No
Double check connection,
for corrosion or high
resistance.
YesYes
A08167
38/40MVC, MVQ