Deciding to Seek Help For Your AC Unit

By the time you finally get into bed at night, you might not want nothing more than to watch a fun television show in your cool, air conditioned master bedroom. Unfortunately, if you are experiencing trouble with your air conditioner, you might find yourself in a stuffy, uncomfortable space instead. However, air conditioning trouble doesn't have to come as a surprise. If you can learn to recognize the signs of trouble early, you might be able to call in the professionals before things turn sour. On my blog, you will be able to read through loads of helpful information on HVAC, so that you can detect trouble before it ruins your sleep.

Is Your Gas Furnace Blowing Cold Air? When to DIY And When to Call a Professional


If you turn your gas furnace on expecting heat but instead it is blowing out cold air, there are a number of different reasons why this may occur. Many of the problems can be fixed by easy DIY projects, without needing to contact a professional gas furnace repair company. To troubleshoot the problem, it's best to start with the easiest problem and work your way through to the more complicated issues. Here are some common causes for a gas furnace blowing cold air that you can fix yourself and when you should know it's time to call a professional gas furnace repair service.

Check the Thermostat

This may seem almost too easy, but in some situations, the most obvious problem is the one that is causing the most issues. If the furnace is blowing out cold air, check the thermostat. If the thermostat is set on "fan," even when the furnace isn't heating, it will cause the blower to continually run. To fix the problem, turn the thermostat setting to "auto." If the problem isn't the setting, you should contact a gas furnace repair company because the thermostat may need to be replaced.

Change the Air Filter

One of the most common causes for a gas furnace to blow cold air is a dirty air filter. If the filter is dirty it may cause the furnace to overheat, which triggers a switch to shut off the burners, but the blower will continue to run in order to cool the furnace down. It is typically recommended that the filter be changed once a month; however, if you have pets or live in a dusty area, the filter may need to be changed more frequently. If the filter is in good condition, check for other possible causes and then contact gas furnace repair services.

Check the Pilot Light

If the pilot light is out, it may cause your gas furnace to blow cold air because the fuel is not being heated. There are a few different scenarios that may occur with the pilot light:

  1. If you relight the pilot light and the flame stays on, this should solve the problem.
  2. If the pilot will not light, make sure there is gas going into the furnace by checking to see if the gas valve switch is in the "on" position. If the gas is on, make sure there isn't any dust or debris blocking the pilot. If the gas is on and the pilot is clean, do not attempt to light the pilot again; instead, contact a gas furnace repair company to inspect the furnace.
  3. If the pilot lights but it keeps going out, there may be a problem with the thermocouple. If the thermocouple needs to be replaced or adjusted, you should contact a professional to do the repairs.

A gas furnace that is blowing cold air is often the result of something simple and easy to repair. However, making repairs to a gas furnace can be potentially dangerous for those who are not experienced, so if you have tried the simple solutions and the problem is continuing, it is best to contact a professional gas furnace repair company to inspect the furnace and make any necessary repairs for you.


4 March 2019