Heater??

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Oct 20, 2009 | 08:21 PM

AngryJagOwner

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Heater??

So does our car have a heater???

It got cold here in Florida and I tried to turn on the heater and nothing but cold air came out no matter the setting?????

any ideas???

Oct 20, 2009 | 10:04 PM

carelm

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Joined: Jan 2009

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From: Fairfax, VA

Hi AngryJagOwner,

It could be a Heater Control Valve issue. Try to set the heat all the way to HI and see if that works. Also you might want to play around with the mode settings to see if that helps. I normally manually set mine to blow out the face and foot vents first and then maybe go to Auto if it's damp out.

Here is some message traffic that might help:

https://www.jaguarforums.com/forum/s...blem#post94140

Mike

Oct 21, 2009 | 01:10 AM

danielsatur

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Posts: n/a

The dual heater control Valve (DCCV) provides both the driver and passenger control for heat, it's not unusual for one to go bad especially in florida.

Actually Heat being in the off pos, will isolate, the hot coolant from going into the heater core, so you have better cooling during summer months.

These electric type selonodes need to by exercised during the summer months,or they will seize or lock-up in the closed pos.

see https://www.jaguarforums.com/forum/thread.php?t=27185 also.

Last edited by danielsatur; Oct 21, 2009 at 02:52 AM.

Oct 21, 2009 | 05:03 AM

JOsworth

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Posts: 3,390

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From: Akron, Ohio USA

Quote:

Originally Posted by danielsatur

Holy Smokes! A well written and helpful post. Daniel is very correct. Since there is no heat at all I wouldn't think it is the cabin temperature sensor, but those are known to go bad as well.

Oct 21, 2009 | 07:11 AM

tbird6

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Joined: Jun 2009

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From: Home

Try this first. Lack of heat is not usually caused by the DCCV but the AUX coolant pump. If you rev up the engine and hold it at 2000 rpm with the engine warm do you now get at least some heat?
Next check the coolant level. If low it could be your problem.
Report back on what you find.
.
.
.

Oct 21, 2009 | 04:09 PM

AngryJagOwner

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Coolant is fine,
Engine had been running for a while. I went for a drive when the cool front hit and it was about 55 out. I figured I would put it on outside air and turn the fan on with temp at 89. It was still blowing cool air when I got home.
but my seat heater works???

Is there a fuse that controlls just the heater??

thanks for the replies.

Oct 21, 2009 | 04:31 PM

danielsatur

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Posts: n/a

Yes, there is a fuse + relay for a Dual Climate Contol Valve (Heat), my all data.com has expired,

Also search this forum tool 'DCCV'' not thread.

Ouch! No wonder everyone starts a new thread!

see https://www.jaguarforums.com/forum/s...ad.php?t=27185

Do you really need a heater in florida?

Last edited by danielsatur; Oct 21, 2009 at 06:01 PM.