Very knowledgeable and explained in detail the problem and prevention
Spray foamed closed cell spray foam on a house foundation, ceiling and walls.
Goodman ac low on freon. Added r22 and cleans the outside unit.
Goodman ac is leaking freon. Coil is dirty. Cleaned and added freon.
Ac was freezing up. Blower motor had a bad capacitor and would not start. Replaced the capacitor, cleaned the condensing unit and added 2.5lbs of freon. Rheem ac unit on a mobile home.