A/C not working after 10 min / Hot and Cold air come from different vent

A/C not working after 10 min . Hot air come from both 2 vent and Cold air come rest 2 vent . Diagnos the ac system and found Temperature mode actuator not working and flap not close .Hot and cold air mix together . Because of this problem after some time ac on ac less cooling . Replace this actuator and ac become normal condition.
Ac less cooling afyer few time ac on condition / ac less cooling/ hot air come from ac vent/ how to check ac system/ Temperature mode actuaror not working/elite I20 ac not working

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