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Sk1ppy



Member Since: 19 Dec 2022
Location: Newbury
Posts: 17
United Kingdom 
Heater always hot!!
Hi

I’ve had a little search but can’t find anything… but I’m still pretty new to the forum! So apologies if this is a common question. My 2.4 90 has been parked up at the garage for the last 6 weeks (don’t ask!!) and on the journey home today I couldn’t get the heater to stop producing hot air. Adjusting the temp dial only made minimal difference. Any suggestions on where I should start to look tomorrow?

Thanks all.
Post #986697 24th Mar 2023 6:46pm
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RobKeay



Member Since: 19 Jul 2009
Location: Stafford
Posts: 1582
United Kingdom 2014 Defender 110 Puma 2.2 USW Corris Grey
Open the bonnet and check the heater cables on the heat matrix. It’s on the passenger side of the bulkhead. Mine needed some wd40 and worked fine after.
Post #986698 24th Mar 2023 6:56pm
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seriesonenut



Member Since: 19 Nov 2014
Location: Essex
Posts: 1211
United Kingdom 
Mine did just the same, I worked out it was not shutting off (moving to the right as you look at it from the open bonnet). Only by a tiny movement but it just kept the heater hot. I re set the cable at the heater valve end and it has been fine since. 2010 XS USW
1957 Series One 88 diesel
1958 Series One 88 4x2
Post #986701 24th Mar 2023 7:38pm
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bear100



Member Since: 22 Mar 2010
Location: South Wales
Posts: 1917
Wales 2010 Defender 110 Puma 2.4 USW Santorini Black
Had some similar issues myself
Sometimes they would stay hot
sometimes one side would be hot the other cold
I found fitting a spring to the manifold helped somewhat
I’ve ordered a replacement manifold to try try
There’s quite a few that are the same eg Peugeot and Citroen etc 2016 Range Rover Autobiography 4.4 TDV8
2010 110 XS Utility 2.4TDCI
2010 Range Rover Sport TDV8 (gone)
2007 Discovery HSE TDV6 (gone)
1993 110 csw 200 tdi (gone)
1994 90 HT 300 tdi (gone)
1994 discovery 300tdi (gone)
90 hybrid 3.5 v8 (gone)
Range rover bobtail 3.5 v8 (gone)
Post #986711 24th Mar 2023 8:33pm
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