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HOW TO ENJOY THE HEAT AND
AVOID THE FIRE - A GUIDE TO
REPAIRING YOUR FURNACE
 Check the Thermostat
 Repairing your furnace can be a easy task if you start with the basics. The first thing you
should check is the thermostat itself. If it is in the off position, this would stop your furnace
from turning on when needed and functioning correctly. In this case it is a simple matter to
adjust the switch to the on position to resolve the trouble.
 Check the Breaker Box
 If the thermostat is already in the on position but your furnace is still not working correctly
remember to check the source of power! Most of the time this will be your breaker box but
some thermostats have their own internal batteries that may need to be replaced. Once you
have determined that the thermostat and power source are both turned on, it’s time to
move on to the furnace itself.
 Check Air Filters
 Frequently the air filter is the source of the issue. If the air filter gets clogged it can prevent
air from flowing correctly through the furnace and your home. There are also safety
mechanisms inside most newer furnaces that will force the machine to power off if a
clogged filter is detected. Be sure to check your filter regularly and replace it when it
appears dirty. How often you should change your air filter varies depending on the size of
the filter and whether there are pets in the home, so check your specific filter for
replacement suggestions. You can also check that the safety switch on the door of your
furnace is not obviously damaged or broken as that can also prevent it from turning on if the
heat or pressure get too high.