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How does the air flow change from heat to defrost in GMC Savana 2500 cargo van?
Flow is changed from the control switch located on the dashboard. Vacuum is fed to the switch and then diverted to the corresponding ducts based upon which setting the switch is put on.
2001 dodge 1500 ac and heater flow regulator switch does not work. works only on defrost?
2001 dodge ram 1500 ac and heater flow regulator switch does not work. works only on defrost. How to fix?
Heat flow will not change from main vent to floor or defrost 2000 Chevy s10?
Check under hood for a broken or disconnected vacuum supply line.
I have a 2002 Ford Explorer that is get low air flow from the defrost vent when the defrost unit is selected. Most of the air flow is going to the floor vents. Is the blend valve bad?
Hi, It is not the blend door, that is for heat/cold changes. The mode door could be the problem, or stuck defrost door.
Why is your car only blowing air at the feet?
If you can Not change the location of the air flow to the different outlets (defrost, dash, floor, etc) That sounds like a mode door problem or a mode door control knob.
How do you fix blower switch in a 2000 Saturn LS that does not change the air flow when you select feet face or defrost positions?
THE PROBLEM IS NOT THE BLOWER SWITCH.IT IS MORE THAN LIKLEY THE CABLE ON THE AIR BOX HAS CAME OFF.
Your air flow doesnt switch when pressing to change from windshield to floor on your 1994 Mazda mx6 any ideas?
Vacuum leak, probably at the vacuum source on the engine.
Why won't the dash vents work on my 1995 Chevy Camaro but floor vents and defrost vent work fine?
When there is a problem with the vent system it dfaults to the defrost setting. Sounds like you have a problem in the doors that direct the air flow.
Why do you not have air flow from the dash vents on a 2002 Mercury Sable when the defrost and floor vents work fine?
Your most likely issue is a bad hvac control switch. On older cars, this was operated by vacumm pressure, but on a 2002, it is all electrical. It may be that you need to replace the whole control unit.
How can the flow of electric current be started and stopped?
Electric current can be started by closing a circuit, allowing the flow of electrons. This can be done by pressing a switch to complete the circuit. To stop the flow of electric current, the circuit needs to be opened, typically by opening the switch, which interrupts the flow of electrons.
What a switch does in an electricial circut?
A switch in an electrical circuit is a device that can open or close the circuit, allowing or preventing the flow of electricity. When the switch is closed, it completes the circuit, allowing the electricity to flow, while when it is open, it interrupts the flow of electricity. This allows users to control the flow of electricity to a particular device or component in the circuit.
How does a three wire switch function in a circuit?
A three-wire switch functions in a circuit by controlling the flow of electricity through three different wires. It can be used to turn a circuit on or off, or to change the direction of current flow.
