causing them to wear and break more easily.
while it is perfectly normal for the heating system to make some sounds during operation, if you notice loud noises that seem out of place, it could be an indication something is wrong inside the heating system. check first to make sure that the air handler panels are simply not loose, then pay close attention to where the noise is coming from.
the sooner you have a local repair company at the home the better. if a belt has broken or is about to break, this is a minor repair. if the bearings or belt has broken, the system is running dangerously close to 