Trouble Shooting - Chigo 38B Service Manual

10. TROUBLE SHOOTING

Indoor Tr sensor
error
Is CN (Tr sensor connector)
connected properly?
YES
Is Tr sensor resistance value
(5KO at 25? ) normal?
YES
Indoor TP1 sensor
error
Is CN (TP1 sensor connector)
connected properly?
YES
Is TP1 sensor resistance value
(5KO at 25? ) normal?
YES
NO
NO
Indoor P. C. board is defective.
NO
NO
Indoor P. C. board is defective.
32
Connect CN properly.
Replace TA sensor.
Replace P. C. board.
Connect CN properly.
Replace TC sensor.
Replace P. C. board.