I have a gas fired boiler with a standing pilot light, with no heat in the whole house.

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First things first, if you landed on this page first please follow this link back to the starting page, to read and understand
the danger of working on your boiler yourself.

The first thing you will need to do is make sure your thermostat or thermostats are turned up as far as they will go, please be sure you turn them up as far as they go, if not you may get an inaccurate conclusion to your no heat problem. Please don't second guess me on this turn them up as far as they will go. Believe it or not it was necessary to to press that point.

Now go to the basement or wherever your boiler is and look at the boiler to see if anything is happening. check the boiler gauge, what is the boiler pressure? it should be between 10 and 20 PSI (pounds per square inch) Check to see if the boiler is hot or not, the gauge (if it is working) will show you the boiler temperature. If the boiler temperature is 140 degrees F. or higher your boiler is firing but not sending heat to the rest of the house.

The gauge may be stuck so before we assume it is showing the correct pressure and temperature place your hand near the boiler and the boiler pipes to see if you feel any heat at all, don't actually touch the pipes or the boiler because they may be very hot, even though you do not have any heat in the house. If there is any heat at the boiler chances are the boiler is firing and you need to go to the I have some heat section and start from there even though you do not have any heat in any part of the house. if the boiler is cold please continue on this page. If the pipes and the boiler are cold and the thermostats are turned all the way up your boiler is not firing.

Check to see if your pilot light is lit, if it is not lit please read the instructions printed on your boiler to relight the pilot be sure to wait the amount of time the instructions state before you attempt to relight your pilot light. I do not post lighting the pilot light instructions because it's best to follow the instructions posted on your boiler. Not all boilers have a standing pilot light some have an electronic spark ignition and some have a HSI (hot surface igniter) you should not place an open flame under any spark ignition or HSI if your boiler does not have instructions to light the pilot light, it may be because it does not have one. Please select the statement that best describes what you have discovered so far.

Note: there are so many different combinations of zone valves and circulators, it is not possible for me to cover each and every possible combination, if you need more help or your configuration is not covered in this troubleshooter, please use my open dialog service,

 

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