We have hot water baseboard heat. Over the past few months, a vibration developed and transfers noise through the pipes and therefore through the whole house. It only happens when the water is circulating and seems to be coming from the electric motor. I feel it when placing my hand directly on it.
My question is......do electric motors somehow develop an imbalance that causes a vibration and is replacing the motor the appropriate fix? Or, could it be something else?
We otherwise have no problems with the heat output, it's just an annoying noise and may signify a developing problem.
I found a replacement motor on the internet and the replacement procedure doesn't look complicated. Should I also replace the coupling and/or anything else?