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Troubleshooting a Hot Water Boiler

Residential Hot Water Boiler Problems

Anyone who lives in a standard house or apartment will more than likely have their water provided by a boiler.  Just like any other appliance, it is possible that you may run into some problems with your water boiler eventually.


  • Your water boiler may not be producing any hot water.  Whenever this happens you will first want to make sure that the pilot light is lit.  If the pilot light is lit, then you will want to check to make sure that the boiler's thermostat and control valves are working properly.  Sometimes these valves will need to either be tightened or replaced.  The thermostat can also break down or wear out over the course of time causing the boiler to improperly heat the water.

  • There are many different types of noises that your boiler can make whenever it is malfunctioning.  Usually this is either a type of rumbling or snapping sound.  It usually means that the tank is getting too hot because some sediment has built up inside of it.  You can easily remove this sediment by flushing the water heater out once or twice.

  • Whenever you find water pooling around the bottom of your boiler, more than likely you have a faulty value or plumbing connection.  However, there are some times in which the water tank itself will become corroded and begin to leak.  In order to fix this problem, you will have to replace the value, the connections or the tank itself.