There are lots of indications that something may be wrong with your boiler. Keep an eye out for any of these signs:
Odd sounds - Odd sounds may indicate a number of problems, such as deposit buildup in the tank or when a component has become damaged.
Leaking - A leak can lead to increased costs, and if left alone, can create an opportunity for even further damage.
Unusual odor - Any strange odors, particularly sulfurous or metallic odors, could be a sign of a serious health.
Older boilers – Once a boiler is 10 years or older it should be routinely checked and repaired by a trained professional. You may even consider boiler replacement to increase efficiency and reduce the frequency of boiler repair.