Goodman furnaces are good units that last many years with basic maintenance such as replacing the air filter. The filter should be replaced when it gets dirty to allow air to pass through the unit and into a home. If the filter becomes clogged with debris and no air can pass, it can cause an… Read More »
As an HVAC tech, I get many calls on furnaces that do not work with a wide variety of problems. One of the top problems and preventable is a dirty air filter which can cause many furnace issues. A common issue is a dirty filter block the airflow into the furnace, which causes it to… Read More »
Purchasing a furnace capacitor and installing it is easy to do and falls into the do-it-yourself category. Basic precautions need to be taken, mainly turning the power off to the furnace so as not to get shocked. Furnaces can fall into three categories when it comes to capacitors. Not have a capacitor at all. Some… Read More »
Allergies are a nuisance that can affect some more than others, but there is a way to help reduce allergies in a home. Some years are worse than others for allergies, with this being a bad year for allergies, at least for me. Locally where I live, the dust and pollen in the air seem… Read More »
A gas furnace can be broken down into its individual parts. Below are the main basic components for almost any gas furnace. Gas Furnace Components and Parts Explained Heat Exchanger When gas burns, it gives off toxic fumes, including carbon monoxide, which is dangerous when breathed in. A heat exchanger is used to keep the… Read More »
If your furnace needs a new control board, the average cost for an HVAC technician to install it is $400-$700. If you are a DIY type of person, furnace control boards can be bought online for $50-$250, depending on the furnace. Doing it yourself is very tempting so let’s look at a few things needed… Read More »
If the high limit switch in your furnace keeps tripping, the main cause is a lack of airflow. When the air can not flow through the furnace, it heats up and trips the limits switch off. Why Does the High Limit Switch Shut Off the Furnace? The high limit switch is a safety feature, so… Read More »
Testing the furnace limit switch by bypassing it is common to see if it has gone bad. A furnace should only be run for a short while to test the switch. The furnace limit switch helps protect the heat exchanger from becoming too hot and cracking. If the heat exchanger cracks, it can let noxious… Read More »
Furnace thermostat wiring falls in the DIY category that a handy type person can hook up or fix. Of course, if in doubt, be sure to call a professional. When working with a thermostat, the cover can be snapped off to expose the wiring. Before doing any work on the thermostat and wiring, take a… Read More »
What is a Fan Limit Switch? A furnace has two switches a fan limit switch and a high limit switch; these switches can be separate or in one package called a combination switch. High limit switch A high limit control switch will turn off the gas to a furnace if the temperature becomes too high.… Read More »