Installing Webasto diesel heater

[lozn Lurker Find all posts View Profile Close lozn]

Hello

I have a question for you guys. I live in Norway, and up here we use a lot of fuelheaters in the winter-time. I have also installed one of these, and it works just fine. But I have a problem, I have the automatic climate control on my 2001 Prado 3.0 D-4D and the fuelheater is supposed to send a 12 Volt supply to power up the fan/climate control unit which it does. And there is my problem, I do not know where the power supply need to go? As far as I can see there are several wires which supply the HVAC unit with 12V and I cannot find out which one I need to hook up to so the fan starts up and heats the cabin.

Any ideas? Starting to get cold up here in the North

Best regards from Geir

[lozn Lurker Find all posts View Profile Close lozn]

A picture of the model I am talking about. Up here it`s designed for left hand driving so the buttons are opposite from yours

[LeighW Avid PP Poster! Find all posts View Profile Close LeighW]

The webasto is designed to operate the heaters fan motor, I assume you have installed
one of the hydronic units, ie thermo top?

I would not interfer with the current heating and air conditioning controls as would need
to splice into the power to the fan switch, it would most likely be easier to access the
the fan unit and just connect to the fan motor.

Honestly these units are designed for camper vans, boats, trucks etc where your living
or at least sleeping overnight, don't really see why you would need to heat the Prado
interior unless your living in it?

Cheers