I went to run my air conditioning for the first time this year.Turned it on and everything working fine so I decided to let it run while I go out to the store.I come back and it was not running and the thermostat hadn't reached room temperature yet so I clicked over to the run position and nothing.I mean no buzzing no fan no nothing.The thermostat made a clicking sound when turning it from off to on but no fan, no air no nothing... The next day I went to try again and it came on again but only ran for about two hours then shut off again... I tried later then the same thing happen.. Finally after the third day, it wouldn't even come on at all.The house and unit is only 7 years old.Please help...

I went to run my air conditioning for the first time this year.Turned it on and everything working fine so i decided to let it run while i go out to the store.I come back and it was not running and the thermostat hadn't reached room temperture yet so i clicked over to the run position and nothing.I mean no buzzing no fan no nothing.The thermostat made a clicking sound when turning it from off to on but no fan, no air no nothing...The next day i went to try again and it came on again but only ran for about two hours then shut off again...I tried later then the same thing happen..Finally after the third day, it wouldnt even come on at all.The house and unit is only 7 years old.Please help....

Time to call an HVAC guy and pay him (or her) to come out and work on it... this is beyond Harry Homeowners abilities at this point.