Technibel MPAFIA0R5IAA Service Manual page 28

7-7 AIR CONDITIONER OPERATES, BUT ABNORMALITIES ARE OBSERVED.
2 - OPERATION DOES NOT SWITCH FROM HEAT TO COOL AND FROM COOL TO HEAT
Remote controller Receiver assy Check the connection Check resistance of
unit may be defective may be defective of reversing valve coil reversing valve coil
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