I have been out of the business for 20 yrs and I didn't keep any of my books on A/C. For a 3 and one half ton central air heat pump (Trane) totally evacuated system about how many pounds of Freon will it take. I am talking pounds by a scale from a 30 lb can of R22. Depending on the outside temp...

Wall UnitT-A/C-HEAT PUMP, 230V AMANA. Older model 10 years plus+++ Unit will not turn on, no noise, groaning, no fan/compressor, etc or any noise. Have verified wall receptacle does have power! Where do I start to look? Where would most likely problem would be?

My two year Amana dryer quits heating after a few minutes of drying. What is causing this problem?

I have an Amana gas dryer about 10 years old. The dryer will heat and the timer will advance on the timer cycle but it will not heat on the heat/more heat cycle. I have cleaned the lint vent entirely. I can see the ignitor get red hot and then ignites the gas on the timed setting. I am not sure...

I just installed a brand new 3 ton goodman Heat Pump system... when the ac turns on , I can here the reverse valve open and the compressor kick on , and here is the question.. The 7/8" copper freon line gets ice cold as it should but only for about 10 seconds and then it goes back to a normal but...