cloud blowing cold air

When cold weather arrives and it’s time to turn on the furnace to heat up your home, the last thing you want is to discover that cold air is blowing through your vents. There are a number of reasons why this might happen, some of which are easy fixes. Other problems may require a little more attention from a professional Gillece HVAC Technician.

Keep in mind that the very first time you turn on your furnace, cold air will blow out for a few minutes as the air already within the system escapes.

If after a while of operation you notice cold air continues to blow through your vents, the problem could be from the:

1.       Thermostat

Make sure your thermostat is on heat mode and set at an appropriate temperature. Gillece Heating Technicians find this is a common source of initial furnace troubles people tend to overlook.

2.       Air Filter

Air filters are an important part of furnaces that can contribute to poor heating performance. If you haven’t changed your air filter lately, now is the time. A clogged filter can block airflow and in some cases cause the burners to shut down so that they don’t overheat.

3.       Pilot Light

In an older furnace, the standing pilot light may have gone out and needs to be relit.

4.       Burners

Burners that are dirty and become clogged can also cause the fan in your furnace to blow but without any heat. Gillece HVAC professionals can help diagnose burner issues.

5.       Flame Sensor

Dirty flame sensors may also be to blame, as they cause heated air to go cold while the gas burner is kept from staying lit.

6.       Fuel Supply

For any heating system to operate properly and produce heat, the fuel supply must be available and working. So for a gas furnace, issues like a faulty gas valve or thermocouple problem can keep the fuel supply from the burners, thus keeping the system from heating. Gillece Heating Technicians can figure out what the exact problem is and get it fixed.

Gillece Heating Experts

When in doubt, call for a professional HVAC Technician to assess the problem. The sooner you can figure out what’s wrong, the sooner you can have your furnace repaired and the heat back on. Remember, annual furnace maintenance is one way to prevent many issues from occurring at the start of the season or during the coldest time of year, including lack of heat. For all of your home heating needs, call Gillece!