Climate Control is Too Hot

Post by **Ian** » Fri Dec 14, 2007 12:26 pm

I've had a search but can't find the answer to this. One of our members has phoned to ask how this problem can be solved. He suspects it is a problem with a sensor, but isn't sure.

Digital Control set to max (35?) blasts out hot air and warms the cabin in no time. But bringing the settings down lower has no affect on the temperature, which remains roasting hot, unless you turn the system off altogether. The fan, resistor, linkages etc all seem to be working fine.

So is it a sensor problem? If so, where is it?

Post by **Ian** » Fri Dec 14, 2007 1:09 pm

Jon, who has the problem, has emailed to say that the wording...

"is slightly wrong. The problem is when it is set on max (35) it is extremely hot, but when set any lower ie 34 then no heat at all. So heat is either on max or off but fan works ok through all 3 speeds."

Steve L · Post by **Steve L** » Fri Dec 14, 2007 1:12 pm

I'm sure I've read somewhere that the sensor(s) is (are) near the winscreen on top of the dash. There is a square plastic bung in the centre, a circular one on the drivers side but no circular one on the passenger side which leads me to think that they are not just screw covers.
The centre one on ours was covered up with an adhesive cover when we bought it. I have since removed this. Maybe one is for the heating and the other the aircon. Dont know which is which though.

BongoMTBer · Post by **BongoMTBer** » Fri Dec 14, 2007 2:14 pm

The sensor on mine appears to be just right of the glove box. It is behind a 10mm x 10mm grill. Ones that I have worked on on aircraft have a small fan behind them to keep the air moving over the temperature transducer and if that fan fails or more commonly the temp probe becomes fouled up with dust etc, the system fails to respond to cabin temperature changes.

You should be able to gain access to the back of it by removing the radio and or the glove box. If you can get to it have a look and make sure that if there is a fan that it is spinning with the climate on and make sure hat the temp porbe if clean.

Hope this helps. I am now going out in 'The Bongo' so shall have a look at mine to see how it works.

Mr Halibut · Post by **Mr Halibut** » Fri Dec 14, 2007 5:54 pm

Air Conditioning should have 2 sensors. One should be near the windscreen on the top of the dash and another which is usually knee height in the dash and looks like a small plastic grill.

This is scanned out of my bongo manual and shows the 2 positions. Make sure you don't have anything stuck on top of them!

http://www.vulomedia.com/images/95184Scan0001.jpg

waycar8 · Post by **waycar8** » Fri Dec 14, 2007 6:29 pm

just had a look on my scapper, the one closest to the glove box, is easy to get to just take out the glove box and you can get to it , its held in by 1 posi screw at the botttom, it a long box with wire connector block going into the back of it, and there isnt a fan on or in it

Matt&JoyBongling · Post by **Matt&JoyBongling** » Fri Dec 14, 2007 8:28 pm

How long should it take for the aircon to pump out hot air? I have mine set to max when driving to the 2 miles to work and it doesn't get particularly hot in that time whereas the cold setting gets cool very quickly.

francophile1947 · Post by **francophile1947** » Fri Dec 14, 2007 8:36 pm

Matt&JoyBongling wrote:How long should it take for the aircon to pump out hot air? I have mine set to max when driving to the 2 miles to work and it doesn't get particularly hot in that time whereas the cold setting gets cool very quickly.

I do about 5 miles to work and it doesn't get very hot since the frosty mornings arrived.

scanner · Post by **scanner** » Fri Dec 14, 2007 11:00 pm

I've done a couple of sub 2 miles journeys lately carting stuff to heavy/bulky to carry and mine has heated up quite well.

Matt&JoyBongling · Post by **Matt&JoyBongling** » Sat Dec 15, 2007 10:02 am

Thanks for the replies. I was begining to fear that something had gone wrong. I normally cylce to work but had to use Mr Bongo recently and it wasn't getting warm until I had arrived at work.