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Old 07-08-2013, 03:35 PM   #1
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AC dash switches + ancient computers thread

Can any of you Eldorado short bus owners tell me how you turn on your air conditioning compressor? Do you use the Ford dash rotary switch or use a switch on the add-on panel that Eldorado installed on the motor cover?

I'm just about to re-work my engine mounted air conditioning and I want to have the wiring right before taking it in to be recharged. Naturally, I can't try turning on the compressor until the system is pressurized.
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Old 07-15-2013, 08:15 PM   #2
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Re: Aerotech AC dash switches

Well, I started out tracing a few wires and ended up dismantling almost the entire HVAC system in the Ford E-450 engine compartment. The mechanical stuff was easy enough but the control circuits sure had me talking to myself. I now have a pretty good understanding of the E-van HVAC system. Working on a bus conversion is nothing if not a learning experience.

To answer my own question, the front blower fan and AC compressor are, in fact, controlled by the dash switches - at least on the Aerotechs. In my explorations I found one bad dash switch, a blower fan on it's last legs and a broken fan resistor so it wasn't a total waste of time.

I also rebuilt the van air conditioning and removed 60 feet of AC hose (while cleverly absorbing quite a lot of compressor oil with my T-shirt ). Not bad for someone who didn't know diddly about auto air conditioning three weeks ago.
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Old 07-16-2013, 11:14 AM   #3
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Re: Aerotech AC dash switches

Another thing I learned:

Don't use penetrating oil in plastic parts. The resistor connector was being stubborn so I sprayed on some PB Blaster and waited 10 minutes. The connector came out all right, but in little pieces.
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Old 07-16-2013, 12:08 PM   #4
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Re: Aerotech AC dash switches

I had nothing useful to say, so I didn't

but watching the onesided question and answering....I figured someone had to break in

never ssen PB break down plastic, i have melted some with old skool sprays
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Old 07-16-2013, 02:12 PM   #5
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Re: Aerotech AC dash switches

Quote:
Originally Posted by bansil
I had nothing useful to say, so I didn't
If the rest of the world had that attitude there'd be one TV channel with three hours of programming a day.
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Old 07-16-2013, 02:33 PM   #6
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Re: Aerotech AC dash switches

Quote:
Originally Posted by roach711
Quote:
Originally Posted by bansil
I had nothing useful to say, so I didn't
If the rest of the world had that attitude there'd be one TV channel with three hours of programming a day.
3 hours a week I would say.....
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Old 07-16-2013, 03:42 PM   #7
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Re: Aerotech AC dash switches

Quote:
Originally Posted by Malkieri
Quote:
Originally Posted by roach711
Quote:
Originally Posted by bansil
I had nothing useful to say, so I didn't
If the rest of the world had that attitude there'd be one TV channel with three hours of programming a day.
3 hours a week I would say.....
See the perfect world already has an editer .......... remember when the internet was only museums and porn? except for the "weirdo's" typing at each on a black or green screen
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Old 07-16-2013, 04:59 PM   #8
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Re: Aerotech AC dash switches

There were museums ??
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Old 07-16-2013, 05:09 PM   #9
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Re: Aerotech AC dash switches

Quote:
Originally Posted by roach711
There were museums ??
I bet they had porn too if you looked hard enough!!
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Old 07-16-2013, 05:21 PM   #10
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Re: Aerotech AC dash switches

Quote:
Originally Posted by Malkieri
Quote:
Originally Posted by roach711
There were museums ??
I bet they had porn too if you looked hard enough!!
Those were called classic paintings
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