XJ40 ( XJ81 ) 1986 - 1994

Heater controls

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Old 08-08-2010, 07:46 AM
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Default Heater controls

My aircon has expired, requires new pump. Since then I cannot control air flow temp in car. Blows warm air when switch is in cold position. Is this a switch problem or the fact that aircon isn't working?
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Jimbo
 
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Old 08-08-2010, 06:08 PM
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Hi, I don't know what year car you have but if you look in the FAQ you will find an outline of the AC/heater controls.

Basically if you select 'Man' or 'Manual' the car should behave like any car without aircon.

In nearly 8 years with my 92 I have just about never used the aircon and always use 'Manual' to draw air from the outside.

Of course you also need to set the heat control to cold air, otherwise it will be warm, just like any other non aircon car.
 
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Old 08-09-2010, 02:32 AM
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Default Heater controls

http://http://cgi.ebay.co.uk/ws/eBay...=STRK:MEWAX:IT
Thanks for the quick reply, it is a 94 XJ40 Sport. I have attached a link showing type of panel. Do you know if clock can be replaced or is it part of panel?
Thanks
JIm
 
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Old 08-10-2010, 02:20 AM
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Default Heater controls

Originally Posted by Translator
Hi, I don't know what year car you have but if you look in the FAQ you will find an outline of the AC/heater controls.

Basically if you select 'Man' or 'Manual' the car should behave like any car without aircon.

In nearly 8 years with my 92 I have just about never used the aircon and always use 'Manual' to draw air from the outside.

Of course you also need to set the heat control to cold air, otherwise it will be warm, just like any other non aircon car.
Tried your solution, airflow is very low even on high setting. Also drove in this morning and selected hot using manual mode and temp of air was still cool after a 20 mile drive. Thinking it might be the temp switch playing up! Could airflow be restricted by blocked air intake?
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again
Jimbo
 
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Old 08-10-2010, 02:48 AM
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This is a reccuring type of problem. Sounds like one of your blowers might not be working properly.

To save typing, why not have a read of this thread and then see how you get on.

https://www.jaguarforums.com/forum/s...heater+blowers

It will give you an insight into how the thing works etc.
 
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Old 08-11-2010, 02:50 AM
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Default Heater Controls

Thanks Richard, very helpfull.
 
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Old 08-19-2010, 12:01 AM
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Hi Richard,
Would you be able to help me with an owners manual diagram, I have a haynes manual which covers XJ40 to 94, but alas when it comes to heater blower removal it shows a model with a glovebox and mine doesn't have one. Spoken to an ex UK jag mechanic, now retired, who tells me the RH blower is under steering wheel on RH side of car, not under left footwell as earlier models seem to have sited. Comments appreciated.
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Jimbo
 
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Old 08-20-2010, 11:28 AM
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I have just seen this, sorry.

You have 2 blowers one on the right and one on the left, so your guy is correct.

First off check all the fuses in all 3 fuse boxes, before ripping out the blower.
 
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Old 08-21-2010, 08:35 AM
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Already checked the 3 fuses, all OK. Seems I will have to live with it as the Jag guy reckons a good half a day if in a serene mood, otherwise a day to replace and all relays appear to be inside blower. Last hope is that the fuse panel may have lost a solder joint so I am going to get an auto electrician to check wires to blower. Do you have any info on removal of RH blower in a RHD car?
ATB
Jimbo
 
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