Author Archives: Aaron Benetti

8 Reasons a Furnace Will Not Work

If your furnace is giving you trouble and not starting, you can try several things before calling a technician. While the furnace may have a problem that requires a technician to troubleshoot, there are often simple causes. Below are eight common reasons a furnace will not start to try out before calling a professional. Of… 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 »

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 »

What is a the Best Thermometer for HVAC?

Taking temperature readings is part of an HVAC technician’s job, from reading air differences at the supply and return to reading super-heat and sub-cooling. What Makes for a Good HVAC Thermometer? This really depends on the job. For example, pocket thermometers are a great tool to carry around and get general readings, such as checking… Read More »

Our Picks for Best HVAC Vacuum Pumps

With so many HVAC Vacuum Pumps to choose from, how can you make sure you’re purchasing the right one for your job? Main Things to Look for When Buying an HVAC Vacuum Pump CFM (Cubic Feet a Minute) Stage (1-Stage or 2-Stage) CFM The CFM (Cubic Feet per Minute) on HVAC vacuum pumps is how… Read More »

How Many Microns is Good in an AC System

HVAC systems such as air conditioning units need a vacuum set on the system before refrigerant is let inside. A good vacuum pump will remove airborne moisture and or non-condensable from the system and will boil off moisture. The deeper the vacuum, the lower the micron level, which is needed for an HVAC system to… Read More »