Carrier 40TGV0131UP Service Manual page 65

[F02 error]
Is connection of TC sensor connector
(CN101 on Indoor P.C. board) correct?
YES
Are characteristics of
TC sensor resistance value normal?
YES
Check indoor P.C. board (MCC-1643).
Defect → Replace
[F01 error]
Is connection of TCJ sensor connector
(CN102 on Indoor P.C. board) correct?
YES
Are characteristics of
TCJ sensor resistance value normal?
YES
Check indoor main P.C. board (MCC-1643).
Defect → Replace
NO
NO
∗ Refer to Characteristics-2.
NO
NO
∗ Refer to TCJ sensor
(Temperature-Resistance value characteristic table)
Correct connection of connector.
Correct connection of connector.
- 65 -
Replace TC sensor.
Replace TCJ sensor.