Author Archives: Aaron Benetti

Gas Furnace Sequence of Operation

There are different types of furnaces and furnace manufacturers, but below are the most common steps for a furnace to go through to start. While most furnaces will follow the below sequences, there may be variations in models and manufacturers. Gas Furnace Sequence of Operation The thermostat reaches a set temperature and sends a signal… 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 released. 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 last… Read More »

Furnace Filters Reviews: Best to Worst

Replacing a furnace filter is often not on the top of the to-do list. It can be overlooked until the furnace is not working properly or the air becomes less clean. People with allergies are often the first to notice when a furnace filter has become dirty and needs to be replaced. And just as… Read More »

HVAC Start and Run Capacitor Explained and Replacement

Capacitors are used in HVAC to help electrical motors to start and keep running smoothly. They are low-cost components that come in multiple packages, shapes, and sizes. What are Start Run Capacitors? A Start capacitor helps a motor start to turn, while a Run capacitor helps it to operate more smoothly. Motors used in HVAC,… Read More »

How To Read an HVAC Temperature Pressure Chart

An HVAC unit needs the correct pressures to operate and cool a space. If the refrigerant is too low or high, the unit will not operate and cause problems such as freezing up or other issues. Pressure changes as the temperature changes, so a pressure temperature chart is used as a reference to get the… Read More »

How Does a Furnace Gas Draft Inducer Work?

A furnace combustion chamber burns gas and contains harmful carbon dioxide as a byproduct. The furnace draft inducer vents the toxic gasses that come from the burner. An inducer motor ensures there is a constant flow of air outside through a vent, so no toxic gasses enter a home. A draft inducer pulls toxic gasses… Read More »

How To Replace a Furnace Blower Motor and Capacitor

A furnace blower motor can be replaced by a handy DIY homeowner, which can save money. Of course, if in-doubt, be sure to call a professional HVAC technician. A new motor and capacitor will need to be bought to replace the old unit. Most hardware stores will not carry a furnace motor, but a new… Read More »