Re: [A/S] Air Conditioner on Fritz

Hi David,

Boy, I would like to not have to replace the whole a/c. Yes, I do have
the 4 button control and it has been behaving badly for a while. I was
hoping it might be the problem. I did call Camper Clinic and told them
I was coming in, but we are having yet another thunderstorm right now
and I called them back and canceled...... Don't want to hook up and
pull in this weather.

I can't get on the roof..... so I'll let them deal with it tomorrow.
Thanks!

Hunter

On 5/8/2012 8:54 AM, David Tidmore wrote:
> Hunter,
> If you can hear the rumble sound like when the heat pump is in defrost, that is a VERY good thing. That means that the compressor, which is the most expensive thing to replace, is actually working.
>
> As you are NOT getting any air movement that indicates that the fan motor (there is ONLY one) is NOT running. That can be caused by several things.
>
> The first is that dirt daubers may have built a nest between the squirrel cage and housing. You can check this by removing the shroud and reaching into the squirrel cage and attempting to spin it. If it resists and then breaks loose suddenly, look for the evidence of the dried dirt clods.
>
> It could also be caused by bearing running dry and seizing. If you can get the squirrel cage to turn but it seems stiff, then get some oil down to the points where the motor shaft exits (both ends). I have had excellent results using Penzoil Ultra pure synthetic (5w-30) as its lubricating molecules actually bond to the metal. I have recovered small motors that were totally seized down and are still running two years later with no issues. I use a long bamboo skewer that I dip into the oil and then lower down to the motor shaft location. You will have to do this many times hand spinning the motor each time.
>
> It could also be the starter capacitor on the fan motor. These things do fail and when the do, the motor will not start.
>
> It could be that the fan motor windings have failed. This is unlikely, but a possibility
>
> Lastly, it could be the relay on the control board.
>
> Bottomline, every last one of these issues IS fixable and for way less than a whole new air conditioner. If you so go with a complete replacement, be aware that if your thermostat is a 4 button model you will have to replace it with the newer 5 button digital comfort control as the 4 button model is NOT compatible with the newer versions of the Heat Pump/AC. If you do decide to replace the AC unit, seriously consider the 15K model. It uses virtually the same power, but delivers 1500BTU more heating and cooling.
>
> David T.
> On May 8, 2012, at 7:38 AM, Tony Turner wrote:
>
>



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