Hi Robert, We've replaced the run capacitor as of today and still the same problem. Just seems that we have bad luck this season. Any other ideas?
Thanks, Sarah

We have a 4 wire but last night did find that the transformer was blown. That has since been fixed and now everything inside turns on and off like it should. Now though, the condensor unit outside, is the problem. The fan om the unit will turn on but the actual compressor will not. It makes a sound ...

We have went through all of the wiring, it is wired correctly. There is, however, no power to the fan switch in the auto position from the on/off switch. It does not seem to matter what we do, we just cannot get power to that switch. Any ideas?

That's kind of what we figured too. We are out of town at the moment but will retrace everything when we get home and let you know. Thanks for the reply and also for the wonderfully fast shipping of your replacement parts!

About 3 weeks ago, we decided that our a/c condenser and "A" coil could use a good cleaning. Furnace model number is MGHA-056ABFC-01 (Nordyne) The furnace had not been run for a few weeks prior to that, as weather did not call for it. Anyway, we cleaned everything up, put it back together ...