How to test a circulator pump and fix common issues
If your house is feeling a bit chilly despite the boiler running full tilt, you probably need to know how to test a circulator pump to see if it's actually moving hot water through your pipes. It's one of those components that you never really think about until your radiators are stone-cold or you're hearing a weird humming sound coming from the utility closet. Testing it isn't as intimidating as it sounds, and you don't necessarily need a degree in mechanical engineering to figure out if it's dead or just being stubborn. ...