Nothing is worse on a cold winter day than turning on your heat and having nothing happen. Or, even more frustrating, having it the heat on for a couple of minutes before it inexplicably turns off. There are a number of possible reasons that this could happen. Let’s take a look at what could be causing it.
The thermostat is the control center for your entire heating system. When you notice something strange with your heat, check the thermostat first. It is quite possible that everything else is working fine, but the thermostat is malfunctioning. Even a furnace in peak condition can’t do much if it’s getting the wrong instructions.
The pilot light is the continually burning flame used to light the burner and start the furnace. If the pilot light is out, the furnace has no way to start and your heat won’t work. It’s pretty easy to check this one. Look under your furnace, though some have a window into the unit itself. If you can’t see the pilot light, that’s the cause of your furnace failure.
The gas valve controls how much gas flows into the furnace. If there is a problem with your gas valve, the furnace won’t light because it won’t have fuel to burn. If your pilot light is still lit, but your furnace isn’t turning on, this might be the reason. It is also possible that there is a leak or a blockage in the gas line itself that is preventing enough fuel from getting to the furnace. Either way, you’ll need a professional to fix it for you.
The burner is what keeps the furnace lit, and is controlled by the thermostat. Occasionally there may be parts of the burner that break or get dirty, and are unable to light or keep a flame going after contact with the pilot light. If everything else seems to be fine, but the burner itself isn’t lighting, you will likely need it serviced by a technician.
If you are experiencing problems with your furnace, call Clean Air Act today. Our professional technicians conduct hearing repairs throughout the Portland, OR area.