How does a cable operated heater control valve work?
A cable-operated heater control valve uses a Bowden cable to drive a flap located inside the valve. As the occupant manually moves a lever in the control panel, the cable moves a flap in the valve. The vacuum valve does the same thing with a pintle and diaphragm, except this type of valve is normally open.
What happens when a heater control valve is stuck?
If the heater control valve is stuck closed depriving the heater core of heated coolant, the inlet hose to the heater core will be hot and the outlet hose much cooler. This can be caused by a clogged heater core. A leaking heater core will leak onto the floorboard and result in a sweet humid smell (coolant) coming from the vents while in operation.
Where is the coolant valve on an AC heater?
It may be located on the inlet or the outlet port of the heater core and activated by a cable, electronic control, or a vacuum signal. This valve may be normally open, allowing coolant to flow until activated, or normally closed, allowing coolant to flow only when activated.
Are there any heater control cable left on Amazon?
Only 1 left in stock – order soon. . Only 13 left in stock – order soon. . Only 3 left in stock – order soon. . Only 1 left in stock – order soon. . . Only 12 left in stock – order soon.
What are the controls for the AC and heater?
This 5-button switch controls the compressor, blower and all vacuum operated devices in the Air conditioning and heating system. Manufactured using injection molded materials, precision cut phenolic components, and electrical… Reproduction of the original 1969-70 Mustang radio side filler panels.
How does the a / C and heater work in a car?
This is also controlled by the knobs or buttons on the climate control unit. When your heat or A/C is turned on, the blower motor is what forces the cold or warm air from your vehicle’s A/C and/or heating system through the interior vents, circulating it inside throughout the cabin.
Where is the control valve on a heater?
The heater control valve allows the flow of coolant through the heater core to be controlled and switched on and off without affecting the operation of the rest of the cooling system. It may be located on the inlet or the outlet port of the heater core and activated by a cable, electronic control, or a vacuum signal.