When you hear your central heating and air conditioning system getting louder and louder with each time it turns on, this is a clue that there is something wrong with it.
Most of the time it means that the motor or fan is on its last leg. And that means that it is time to call your local heating and air conditioning company to send out a certified heating and cooling specialist to fix your central heat and air conditioner. Or, if you have an independent heat and a/c specialist that you use for all of your heating and cooling needs you will have to be on the phone to them when your central heat and air conditioning system starts making noise like this. Otherwise it could lead to a much more expensive heat and a/c repair if the central heating and cooling unit ends up completely breaking down all together. So look for that noise as a sign. It could be a loud hum when it comes on and is running or it could be a big thump type noise that you hear every time the central heating and air conditioning system turns on and off. When you hear this do not wait to make that phone call to your local heating and air conditioning company or your local heating and air conditioning independent specialist. I learned about this long ago from a friend of mine who was a heating and air conditioning expert. They told me that I should watch out for things like this, so now I am telling you the same exact thing.