Armstrong Air Conditioner

[Kurt & Eve]

We have 27 ft 1972 Overlander with a Armstrong air conditioner that quit working last year. The air conditioner was working , then it began to leak drops of water inside the trailer before it quit blowing cold air. Now it just blows air. Any help would be appreiciated.

[thenewkid64]

There are a number of things that could cause the unit to stop working.

Couple of questions:

Do you have a wall mounted thermostat?

Does the blower still work?


Depending on the answers there are many options to how to fix it. The Armstrong units are normally tough as tanks and can be fixed by a normal AC guy.

[Kurt & Eve]

Hello Brent G
Yes it does have a wall mounted thermostat and yes the blower still works.

[overlander63]

Originally Posted by Kurt & Eve

Hello Brent G
Yes it does have a wall mounted thermostat and yes the blower still works.

Next question, can you hear the compressor start when you turn the unit on? Or does it just click and just the fan continue to run?
Terry

[Kurt & Eve]

I will get back to you tomarrow (July 25) on that one.

[dbtolman]

Is there an easy way to tell if this is the AC unit in my 70 overlander?

[thenewkid64]

Originally Posted by dbtolman

Is there an easy way to tell if this is the AC unit in my 70 overlander?

Does the shroud inside say Armstrong on it?

Armstrong seems to be the only brand that uses a remote thermostat that were installed in the 70's.

[dbtolman]

Originally Posted by thenewkid64

Does the shroud inside say Armstrong on it?

Armstrong seems to be the only brand that uses a remote thermostat that were installed in the 70's.

Hmmm.... Have to drive out to see it at storage... It's got the remote thermostat though...

Particularly interested in this thread since mine drips water (condensation) from the shroud inside right now...

[overlander63]

Originally Posted by dbtolman

Hmmm.... Have to drive out to see it at storage... It's got the remote thermostat though...

Particularly interested in this thread since mine drips water (condensation) from the shroud inside right now...

Here is a link to my trailer while it still had the OEM Armstrong unit on it. If yours looks like this, then you know what you have.
Terry
http://www.airstreamphotos.com/photo...cat/500/page/2

[Kurt & Eve]

Hello Brent G
Couldnt't get to the trailer today. Will try again next weekend. Thanks for your help

[robandzoe]

This trailer is going to be cut up within the next two weeks. It has an Armstrong AC on it. It's located in NE North Carolina, about 2 hours from Raleigh, in Hubert, zip code 28539.

http://www.airstreamphotos.com/photo...sort/1/cat/500

Rob

[JohnG]

Originally Posted by robandzoe

This trailer is going to be cut up within the next two weeks. It has an Armstrong AC on it. It's located in NE North Carolina, about 2 hours from Raleigh, in Hubert, zip code 28539.

http://www.airstreamphotos.com/photo...sort/1/cat/500

Rob

Does that AC work? Wouldn't want to drive out to get it or even pay shipping for it unless it for sure works?

What else is in that trailer that is salvageable? Can you post some pictures?

[Kurt & Eve]

Hello Brent G
The cannot hear the compressor start and the ac unit does not make the clicking sound, but the fan does run.

[thenewkid64]

Originally Posted by Kurt & Eve

Hello Brent G
The cannot hear the compressor start and the ac unit does not make the clicking sound, but the fan does run.

If you take the cover off the thermostat you should have 12-14 volts at the screws. If not, then the transformer, under the shroud on the roof, will need to be replaced. I have not replaced one, but I know DavidZ here on the forum has replaced his. The reason for the transformer is to feed the relays that energize the compressor. You could also be in need of a starter capacitor, but if it were a cap then you have a dip in the sound of the fan as the compressor tries to start.