I have a re-occurring issue with my central air. I have changed filters, cleaned all three intake vents and even had a serviceman out on three different occasions (two separate companies). My problem is low air pressure out of the cooling vents, and the outside line freezes up within one to two hours. The temperature in the house is anywhere from 80 °F to 85 °F, even though the (digital programmable type) thermostat is set to anywhere from 77 °F to 79 °F. After a couple of hours there is no change in temperature, less air pressure and a frozen line. All three serviceman say the Freon levels are good and air pressure is good, yet my home doesn't cool down.
This is becoming a costly issue with no coolness in sight. What's your suggestion?
Note: I have two adults, five kids and three dogs, and have never had this problem in any homes before.