Hi there

My central air unit will work one day, then not another. Or it will
work for a while then stop. By this i mean air is blowing out of the
the vents, but not cold air. Sometimes it does work however. I have
a clean filter and i have tried it on auto and on fan with the same
result. I don't understand how it can work one day and not work
another. ANYONE know why???

Thank You for your time

Sonia