Carrier RAV-SP180UT-UL Service Manual page 101

[L30 error]
Are outside devices of
connector CN80 connected?
YES
Do outside devices normally work?
YES
Check cause of operation.
[F10 error]
Is connection of TA sensor connector
(CN104 on indoor P.C. board) correct?
YES
Are characteristics of
TA sensor resistance value normal?
YES
Check indoor P.C. board (MCC-1510).
Defect → Replace
NO
NO
NO
NO
∗ Refer to Characteristics-1.
– 101 –
Check indoor P.C. board (MCC-1510).
Defect → Replace
Check outside devices.
Defect → Replace
Correct connection of connector.
Replace TA sensor.