I have a 2006 Chrysler Town and Country. This morning, when temperatures hit 90 degrees for the first time this summer, the blower stopped working on the car. Actually, the blower, the power windows, the radio, and the windshield wipers all went out at the same time, which suggests to me that it's an electrical issue (though, I don't know much about cars).

Any thoughts?

We just returned from the local auto parts store and tried installing a new relay in several different locations. We didn't switch out any fuses (they all look OK to me). It seems impossible to me that several fuses (the windshield wipes, power windows, and blowers are all on different fuses) would blow at once.

It actually seems like the compressor for the AC is working. The ventilation system leaks cold air (not hot air) and the van drips water as if the AC is working.

Here's how to properly test all under hood and under dash fuses with a test light or multimeter:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post252145

Be thorough and test every fuse, since it will save a lot of time and money. Typical flow is: battery (+), under hood fuse/relay box, ignition switch, under dash fuse/relay box.

A little more information...

I just figured out that the power windows, radio, and windshield wipers work fine if I insert the key and turn it backwards into accessory mode. I can also get the blowers to work if I turn it in the direction to start but stop just short of starting it.

So, I'm now sure that it's not the fuses and it's probably something in the ignition.

Thanks for the link to test the fuses. At least I can get the windows down for some "natural AC".

Sounds like the ignition switch is bad. Typically, here's how you can replace them yourself:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-2.html#post224652

It's not difficult.

Here's what your's looks like and costs:

http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?categoryDisplayName=Ignition+(Tune+ Up)&fromType=parts&fromString=search&parentId=cat30070&currentPage=1&filterByKeyWord=ignition+switch&isSearchByPartNumber=false&navValue=16200189&categoryNValue=16299999&fromWhere=&itemId=prod61705&displayName=Ignition+Switch&searchText=ignition+switch