McKinney heat is no joke when your unit starts blowing warm air or humming...

https://www.4shared.com/office/aook31QXge/pdf-58534-10569.html

McKinney heat is no joke when your unit starts blowing warm air or humming loudly. I have put together a list of reliable local repair shops that provide upfront pricing. Getting your home back to a comfortable temp has never been easier.