Re: [A/S] >3. Air Conditioner on Fritz

I think Hunter might have the same OEM unit my '89 came with, the Coleman
Mach III and those buttons definitely go bad.

On Tue, May 8, 2012 at 10:28 AM, Peter Ryner <pryner@verizon.net> wrote:

> **
>
>
> Hunter,
> Is this an original Armstrong unit? If so, the thermostat does not control
> the fan at all. It only turns the compressor on and off. The compressor
> has two capacitors that run it, start and run. If the compressor is
> running
> the capacitors are fine. The fan is controlled by a switch on the interior
> of the camper, normally on the side of the A/C. Mine had a toggle switch
> but looking at some of the posts, yours may be controlled by push buttons.
> Unless you have rain coming into the trailer, it is doubtful that anything
> shorted out from the rain that would control the fan. If the compressor
> isn't running correctly then you could have a problem with the
> capacitor(s)
> or wiring in the capacitor box which is on the front side of the outside
> unit.
>
> There is no reason to get on top of the trailer to spin the fan by hand.
> The motor runs the exterior fan as well as the interior one. There is one
> long shaft that goes through the motor to each fan. To see if it turns by
> hand just remove the interior filter and try to move the interior fan. If
> it is stuck or has a lot of resistance then look for a mechanical problem
> such as something stuck on the fan on the exterior side. If it moves fine
> then I would suspect an electrical problem, especially if it worked fine
> before the rain. The unit will run fine even without the exterior shroud
> on
> it and rain will not affect the exterior system, unless the wires inside
> the
> capacitor box got wet.
>
> Even if it is not an original Armstrong unit there are very few, if any RV
> A/C systems that have the fan controlled by the thermostat. I've only seen
> some of the newest ones that work like a house unit where the fan is
> turned
> off when the compressor is shut down. Most have a separate circuit for the
> fan which operates either all of the time or not, and they normally have
> different speeds to select. You should be able to run the fan by itself.
> If it isn't working the A/C will operate but no air will flow in the
> trailer.
> Pete
>
>
>


[Non-text portions of this message have been removed]



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