Climate Control Problem

[raceycole]

Another problem, this time with my father-in-laws bus. Basically the aircon seems temperamental. The system is fully gassed, and seems to blow out ice cold air for about 2-3 minutes, then suddenly the cold goes and just warm air blows out. If you turn the ignition off and leave for a few minutes, the system will blow cold again but then hot after a while. I wonder if this is an electrical problem...mayby the a sensor on the climate control has given up?

[Ace of Diamonds]

Originally Posted by raceycole

Another problem, this time with my father-in-laws bus. Basically the aircon seems temperamental. The system is fully gassed, and seems to blow out ice cold air for about 2-3 minutes, then suddenly the cold goes and just warm air blows out. If you turn the ignition off and leave for a few minutes, the system will blow cold again but then hot after a while. I wonder if this is an electrical problem...mayby the a sensor on the climate control has given up?

Does soundsas if there is a sensor problem.

[raceycole]

sorry I don't know too much about these cars, but I am a competent DIY mechanic. Any ideas where I would find the said sensor? Is it somewhere in the dash?

[Vorenus]

What type of climate control panel does the bus have? There are two tpyes. A basic one with sliders and the electronic variant with push buttons along the top of the panel?

[raceycole]

I have two sliders. one for blower speed and the other for temperature, then loads of buttons to tell the system whether I want the output on the screen, feet, face, recirculate, auto climate,etc etc. It certainly has more buttons than my brother in laws non climate Previa.

[SAVA9E]

Is it set on auto as if the sliders where set right then yes it would change to hot air as its cold enough outside.

[Ace of Diamonds]

Originally Posted by SAVA9E

Is it set on auto as if the sliders where set right then yes it would change to hot air as its cold enough outside.

good call

[raceycole]

Afraid not. Temp slider was set to lowest temperature. The problem occurred throughout the summer, but I told my father to live with it. He plans a summer sortie into france with his bus some needs me totry and fix the air con! Any ideas where the sensor maybe?

[Vorenus]

If you sit in the drivers seat and look to the bottom right of the windscreen and on the top of the dash panel there should be a black circlular fitting about the size of a 50p. This is one of the temp sensors. A second sensor is fitted on the lower trim panel on the drivers side. Sitting in the seat, look to the left of the cluster and follow a vertical line downwards you should see a small vent on the trim panel underneath the steering wheel. This can clog up with dirt and fluff.

There is also a sensor under the bonnet and directly in front of the radiator.

[Ace of Diamonds]