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The first step in troubleshooting a gas boiler with a standing pilot lite.

The first question is, do you have heat in any section of your home? If you only have one source of heat in your home (some homes have more than one boiler) and you have heat in one or more sections of your home, this means the boiler is firing but for some reason a section of the home is not getting any heat at all.
Please note: there is a big difference between NO HEAT and LIMITED HEAT. No heat means there is no hot water running through the baseboard or radiators.
Limited heat means you can feel heat on the baseboard or radiator but the room or section of the house is still cold.

I have some heat.

I have no heat at all.

To get to the root of your issue, please use The 24/7 Help Line.