AC fan speed control

Slow the fan down and when the humidity is high the coils will ice up.

You need to find out if the motor is AC or DC driven.... most likely AC (cheaper drive method). IF its AC, then the speed control isn't an "easy fix" as the "duty cycle" of the AC has to be "altered" NOT the voltage level. For a DC motor, a rheostat or equivalent could be used.

http://www.ebay.ca/itm/Solid-State-AC-speed-Control-for-Blower-motors-/141226907354?pt=LH_DefaultDomain_0&hash=item20e1c796da

This is an example of an AC blower control (used in things like stove fan hoods). The important value besides the voltage is the amperage rating. This one is only rated for 2.5 amps. Not sure what your AC fan is rated for but probably 3-5 amps.

http://www.ebay.ca/itm/AC-Motor-Fan-Speed-Control-KB-Electronics-KBWC-15K-Kit-120VAC-5-Amps-/380893767245?pt=US_Lighting_Parts_and_Accessories&hash=item58af09a64d

This one has a higher rating.

Note: I have only used the "first link" to replace a speed control in my house stove fan but I think the "technique" is the same.

Many/most Ac units are loud - nature of the beast. In my rig operating the AC on low contributes to icing issues - fortunately in Oregon we don't have to use AC often.

Reduce the air flow and the unit will ice up. You don't want to do that.

We have a privacy curtain at our bed. If the A/C is blasting us we pull the curtain.

An A/C to work properly needs a certain minimum airflow for a given capacity. Lowering below that point leads to severe icing and shortened compressor life. I would not recommend lowering below what the manufacturer set as low speed fan.

that is why an oversized AC won’t work well for comfort control… they cool too much too fast and don’t dehumidify the air…

prichardson wrote:
An A/C to work properly needs a certain minimum airflow for a given capacity. Lowering below that point leads to severe icing and shortened compressor life. I would not recommend lowering below what the manufacturer set as low speed fan.

Good info. I didn't think about the airflow across the coils and icing.
Thanks for all input.

In this scenario, slow down your fan, otherwise coil might be turned to ash. Don't try to repair it yourself as it might create more sophisticated problem, which would let you to spend more money than usual. It would be wise to hire some competent west palm beach air conditioning repair tech guy.