Drivers side heating only seems to work on HI

Sidecar fan · Feb 12, 2013

Whilst the front passenger side heating seems to work fine the drivers side (RHD) is another matter. Have tried with the Aircon on and off and you get the same thing - with the temperature at 28 and any lower you get cool air through the right hand windscreen vents (the left hand side is fine) and the other Drivers side vents. However put it up to HI and you get blasted with hot air.

Presumably there are two separate controls so is it just a failure of the right hand side one, and if so how easy are they to replace.

Datatek · Feb 12, 2013

Blend motor pot gone. Bugger of a job, do a search. Do you have the book symbol on the HEVAC?

Sidecar fan · Feb 12, 2013

Yes - do have the book symbol.

Datatek · Feb 12, 2013

Sidecar fan said:
Yes - do have the book symbol.

For sure it's blend motor problem. Might just be the flap sticking, there is a mod involving a self tapping screw that was posted by eightinavee some time back. Do a site search.

Saint.V8 · Feb 12, 2013

Datatek said:
For sure it's blend motor problem. Might just be the flap sticking, there is a mod involving a self tapping screw that was posted by eightinavee some time back. Do a site search.

Thought the Self Tapper was for the distribution motor only...or is it applicable to all the blends??

Datatek · Feb 12, 2013

Saint.V8 said:
Thought the Self Tapper was for the distribution motor only...or is it applicable to all the blends??

I don't know Ant, just remember something about a self tapper and sticking flaps

stjohnsmythe · Feb 12, 2013

Datatek said:
I don't know Ant, just remember something about a self tapper and sticking flaps

My distribution flap is stuck (luckily blowing out the demist vents, side and floor vents). I'll have a search for that mod.

wammers · Feb 12, 2013

Datatek said:
I don't know Ant, just remember something about a self tapper and sticking flaps

Goes in the joint in the air box seeable after removing centre vents from dash. Pics on here somewhere.

eightinavee · Feb 12, 2013

The self tapper will only help for sticking distribution flaps - not the left and rh temp servo's.Someone did a full write up on RR.net for me,several years ago before I had a digital camera.
Guess who has a p38 in the yard with a sticking dist flap with a self tapper already in it......

wammers · Feb 12, 2013

eightinavee said:
The self tapper will only help for sticking distribution flaps - not the left and rh temp servo's.Someone did a full write up on RR.net for me,several years ago before I had a digital camera.
Guess who has a p38 in the yard with a sticking dist flap with a self tapper already in it......

Bet it's you. Full cycle it seems.

sillyboy · Feb 12, 2013

Hi If you go to rangerovers.net/repairdetails/blendmotor.hmtl you can down load a full discription of how to repair and how it all works i found the best way to replace the drivers side motor was to remove the instrument panel but on no account turn the ing. key while you have the panel unpluged Best Regards sillyboy

Saint.V8 · Feb 12, 2013

As an addendum to the above....Disconnect the battery before unplugging the binnacle, else the possibility of and Air Bag fault!!

sillyboy · Feb 12, 2013

Hi if you go to rangerovers.net/repairdetails/blendmotor.html you will find a full details of how it all works and how to repair, i found the best way was to remove the instrument panel but on no account switch on the ing, while you have the panel unpluged

Datatek · Feb 12, 2013

Saint.V8 said:
As an addendum to the above....Disconnect the battery before unplugging the binnacle, else the possibility of and Air Bag fault!!

As an addendum to the above....Disconnect the battery and wait 10 minutes for the back up to discharge before touching anything to do with the SRS unless you like the idea of a face full of airbag

eightinavee · Feb 12, 2013

wammers said:
Bet it's you. Full cycle it seems.

Yep..... Nice ! That and a DII with more water inside it than out - starts itself,or tries to even with the key out.
And on the ramp a 3.9 Classic with two exhaust manifold studs snapped off on the LH head,time for thread inserts.
Not an easy job in sight.
BTW as long as the key is out of the ignition,there is no need to worry about the SRS or EAS, I only remove a battery lead on P38's if I really have to,it often causes more problems than it solves,even just getting the radio code or correct EKA can be a problem.The bit about waiting 10 mins too is not worth worrying about,the SRS DCU has a shorting bar in its plug.So if you need to work on the SRS system just pull the DCU connector about a minute after turning the key off.Blend motor or instrument pack work does not need a battery disconnect - just dont put the key in till the work is finished.

wammers · Feb 13, 2013

eightinavee said:
Yep..... Nice ! That and a DII with more water inside it than out - starts itself,or tries to even with the key out.
And on the ramp a 3.9 Classic with two exhaust manifold studs snapped off on the LH head,time for thread inserts.
Not an easy job in sight.
BTW as long as the key is out of the ignition,there is no need to worry about the SRS or EAS, I only remove a battery lead on P38's if I really have to,it often causes more problems than it solves,even just getting the radio code or correct EKA can be a problem.The bit about waiting 10 mins too is not worth worrying about,the SRS DCU has a shorting bar in its plug.So if you need to work on the SRS system just pull the DCU connector about a minute after turning the key off.Blend motor or instrument pack work does not need a battery disconnect - just dont put the key in till the work is finished.

Would pulling F23 not do the same job?

eightinavee · Feb 13, 2013

Not really Wammers,early cars also had a feed from F7.(Pre 99) Also its better really to let the shorting bar in the connector do its job.

wammers · Feb 14, 2013

eightinavee said:
Not really Wammers,early cars also had a feed from F7.(Pre 99) Also its better really to let the shorting bar in the connector do its job.

Ok good info.

Drivers side heating only seems to work on HI

Sidecar fan

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Datatek

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Sidecar fan

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Datatek

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Saint.V8

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Datatek

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stjohnsmythe

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wammers

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eightinavee

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wammers

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sillyboy

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Saint.V8

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sillyboy

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Datatek

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eightinavee

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wammers

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eightinavee

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wammers

No longer with us, RIP

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