Midea CSU-05HCAA Installation And Maintenance Manual page 103

8. 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.
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Connect CN properly.
Replace TA sensor.
Replace P. C. board.
Connect CN properly.
Replace TC sensor.
Replace P. C. board.