Vintage Air Heater Control Valve Not Working

If in the wrong spot you will not have water circulating through the heater core.

Vintage air heater control valve not working.

The heater control valve is a directional valve. Then in summer i would just disconnect the hose plug it. Cobra wiring diagram with servo heater control valve 461171 update 11086 vus 11076 vus trinary switch wiring diagram for ron francis. This is not a solenoid valve it s a servo driven valve so there is not a possibility for crossed wiring besides that part is all factory wired.

Attaching to the water pump and radiator gives no flow. I had an older va unit in my old 69 that the heat didnt work from day 1. Installing the valve improperly such as having the flow reversed will allow water to flow through thus inhibiting cooling. One vintage air system i had used two 5 8 dia.

Failing to install the heater control valve in the correct hose will allow water to collect in the unit. It is not defective servo. The servo can be removed easily from the hot water valve. Heater control valve connection and chassis ground may be located on either side of the firewall.

A leaking or faulty valve will have a more pronounced affect on the unit s cooling ability. If the heater control valve is stuck closed the valve s inlet and outlet will remain at different temperatures. Servo heater control valve kit electronic servo heater control valve control panel ecu module installation select a suitable location for the control panel. Heater control valve installation.

Excessive system pressure can also cause vibrations and whistling noises from the expansion valve and refrigerant lines. One needs to be in the intake pressure feed line and the other to the water pump or radiator return points. When in heat the valve closes. These pages are intentionally left blank so templates and packing lists will print correctly when using a duplex printer.

Check for heat transfer by disconnecting hose from the system completely. Heater control valve warning. If the heater core is clogged the inlet and outlet will be different temperatures. Always mount circuit breaker as close to the battery as possible.

Vintage air installation instructions. Consider heater control valve location and the length of the wiring harness. Some documents contain blank pages. In winter i would run a vacuum line to the valve from the carb and it worked perfectly.

I could never find out why it wasnt getting vacuum from the va. The panel may be mounted under the dash or switch can be removed and installed in dash. This servo is identical to the one that drives the floor vent gate and when swapped it works in all appropriate positions for moving air.