Author Archives: Aaron Benetti

Cost to Replace a Furnace Motherboard Control Board

If your furnace needs a new control board, the average cost for an HVAC technician to install it is $400-$ If you are a home DIY type of person, furnace control boards can be bought online for $50-$250 dollars depending on the furnace. Doing it yourself is very tempting so let’s look at a few… Read More »

How To Bypass the Furnace Limit Switch for Testing

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 and Troubleshooting

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 »

Test and Replace the Fan Limit Switch on a Furnace

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 »

Our Picks for Best 120 Volt Electric Garage Heaters 2021

Keeping a garage warm, or at least warmer, is ideal when working during the winter. One of the problems with many garages is they lack a 220-volt outlet to run a heavy duty-heater. 220-volts is ideal for getting the high amps needed to run a commercial-style electric heater. With that said, there are many 120-volt… Read More »