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Auto Air Conditioning & Heater Repair/Blower Relay
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Question
My blower in my 2004 Ford Explorer Sport isn't blowing! I've checked the fuses and they seem fine. I'm looking for the relay so i can check that as well. I'm not sure what else to do after that. Please help. I'm living in Germany and it's starting to freeze! My heating, a/c, and defrost do not work. :( Thank you!
Hello, it sounds as if you have done the basics but do you know whether there is a 12 volt feed to the fan itself ?
With a volt meter get as close as you can to the fan motor feed with the ignition on and the blower on. We need to know whether the fan has a 12 volt feed.
If it hasn't you are on the right lines with fuses and relays. An auto electrician may be the next step.
If a feed is present will it work on maximum fan ?
If so, the fan rheostat is at fault.
If you recall the fan speeds working on some lower speeds but not others for a while before it went completely then there is a fan resistor that could be faulty.
The rheostat and the resistor are both located around the fan box. A little bit of research on Google should throw up a few pictures.
I am not sure of your vehicle type as we are a UK company,
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Answers by Expert:
Paul Evans/ www.chillywillys.org
Expertise
Any question related to the function or malfunction of vehicle air conditioning excluding model specific problems with the heater controls. We are a UK based company and are unlikely to be familiar with the exact make and model of American vehicles. We will always at least try to guide the owner towards what the problem is likely to be in this instance We may struggle with none specific electrical issues related to the a/c without seeing it but it is likely we could narrow the problem down
Experience
Director www.chillywillys.org specialising predominantly in UK vehicles, fleet, rare and collectables. Although all a/c works on the same principal US vehicles have different controls and electrics.
12 years experience automotive and aircraft air conditioning.
This is our sole source of revenue, we see lots of a/c issues that we are able to diagnose accurately mainly down to experience.
UK have garages caught on to a potential revenue stream within the last few years but sometimes struggle with the problems as they don't see the issues that often........to be fair they could get their own back and ask me to change a timing belt !
Certain vehicles have known issues, we can help with that and also anything that is obvious to us but not necessarily to the bamboozled owner.......
a/c is relatively new here and owners are catching on to maintenance but are sometimes still misguided by inexperienced individuals a bit timid to say' I don't really know
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