As to the high pressure switch where would one locate that? One thing I noticed was that there were two fittings near the compressor, one with blue cap and one with red cap. The red cap seemed to have a small brass protrusion stickin out the top.

tnsailorguy said:

As to the high pressure switch where would one locate that? One thing I noticed was that there were two fittings near the compressor, one with blue cap and one with red cap. The red cap seemed to have a small brass protrusion stickin out the top.

At this point…The pressure switch is not easy to explain….Lots of info here on the forum about pressure switches…

The Red & Blue things are where a service guy/gal connects gauges…

Steve~

The Pressure Switches themselves will not be the issue…Hot air cycling back to the unit can make the pressure switch cycle the unit as you described…The pressure switch is a protection switch…It senses high pressure & shuts the unit off to avoid damage…Then when the refrigerant pressure reduces in the system it will allow power to again run the compressor.

Look for hot air cycling back to the unit such as a leaking duct…This can cause both issues I mention…

Steve~ 

It would work…Won't solve your problem if you are leaking air like I think is possible, and it will not completely cover your hole…You'd have to make an adapter plate…

You should also know that it's setup to operate blower motors with more than one speed winding..Like 2 or 3 speeds…

Your unit is Variable speed with only one winding…So with that control you would only have High speed unless you go to Home Depot & get a light dimmer & install it in-line with the fan wire…Then you would have variable speed, but only manually adjustable as opposed to the auto speed control you now have…

Steve~

Feeling the air at the grill will tell you nothing except that the unit is cycling on & off…

What I was trying to get across is you need to get down to the unit itself…Open up whatever hatch or lift whatever cushion is needed to do so…Then with the unit running…Feel around for either hot or cold air (depending on if you are running in heat or cool) leaking into the space around the unit…

Yes your description reinforces my thought somewhat…

To be honest…I don't know if it would be an improvement or not (the control)

That's more of a thing of what floats your boat  

I myself like the auto fan speed you have now because it makes the unit quieter without having to get up to slow that motor down…But that may not be as important to you as the remote, or your fan in your installation my not be noisy when on high speed.

Steve~