I have an old central unit, about 20 y.o. The fan that blows air into the house makes a humming noise and is slow to start in between cycles. Could this be the relay or most likely the motor? Could cleaning the motor make a difference? It does not stop once gets started and cools the house OK.

My Kia Rio (5 years old) makes a beeping noise just after I have started it. I only hear it when the radio is on. Completely different noise to indicate a door has been left open, or I need to put my seat belt on. Sounds like a microwave 'beep' and does 10 of them each time.

The furnace is 4 months old, in a trailer. Two days ago, I thought I heard metal clanking, like something falling. Since then, the furnace "roars" like a fireplace on initiation of the fan- after I hear the ignition kick in. It was only occasionally, but has become more regular, now. Thank you.

I've got a Murray Snow Blower - 2 years old. I believe it's an 8 HP. It doesn't move forward or revers. Does any one know how to fix this

Hi all, I have a 4 and 1/2 year old ComfortMaker furnace. The combustion air blower started making a rumbling noise while starting and stopping and continues to vibrate while running. I had a heating & cooling service look at it. $65 just to show up. Without taking anything apart he said...