Heater is blowing only cold air. both hoses for heater core are warm. what you think, main flap is stuck or is something else??

Hello there..Its two things..If your saying that the heater hoses are hot into the car,,either the blend dorr they call it thats what changes from cold to hot,the flap as you say,or the heater controller that controls it is bad..The dial on the dash that says cold to hot..Shut car down and listen for the flap to open and clse when you change it to hot to cold..If you hear it moving doesnt neccisarily mean that its working it could be broke from the flap and just spinning around or the flap its self is broke,or the heater controls are bad,,Hope this helps you and have a great day

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