Why do I hear noises coming from my boiler?
Why do I hear noises coming from my boiler? There’s a variety of causes for this, such as a simple mechanical pump failure or air and debris caught in the boiler’s impeller. When one part of a boiler system starts to break, this can very easily escalate to other areas of your boiler, and spread to affect your home at large. What causes a bubbling sound from the cooliant area? 3 Answers 3. Bubbling probably means that air pressure is building in the coolant. This is often caused by a blown head gasket, where coolant leaks into one or more...