XJ6 & XJ12 Series I, II & III 1968-1992

Constant hot air from vents

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Old 04-07-2021 | 11:06 AM
Voodoo's Avatar
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From: Central Virginia
Default Constant hot air from vents

Howdy Folks --

I am a first time Jag owner. '78 XJ6L. Trying to track down a problem with constant hot air from dash vents. FAN switch OFF, yet hot low flow air from vents. The fan is NOT running. Any ideas?

Thank you,
PV
 
  #2  
Old 04-07-2021 | 08:22 PM
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From: Adelaide
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Im no mechanic but I had a similiar issue except constant hot air at the feet.
Check the heater valve in the engine bay as mine was rusted up. When I replaced it (and air cond fuse) my heating and air conditioning started to work, and I didnt have hot air constantly at my feet.
Not all my air vents are efficient but least Im now not melting while driving on a warm day!
 
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