Category Archives: HVAC how to

HVAC or Heating Ventilation and Air conditioning has been with us for some time now from gas furnaces to cooling the air in our homes. The problem as with anything modern is it cost money when things break. This site is here to help everyone from the at home do-it-yourself person to the beginning HVAC technicians. With articles about troubleshooting HVAC problems.

What Makes a Quiet Air Conditioner?

Having an air conditioner that makes a lot of noise can be distracting to say the least.   From not being able to hear the TV to talking on the phone loud appliances such as A/C units can be very annoying.   There are a few things that can be done to help quiet down… Read More »

Reasons an Air Conditioner Compressor Will Not Start

An air conditioning compressor is the heart of the the unit and can be a real problem if not working.   There are many things that can cause a compressor to stop working.   Below is a list of some common issues to look for when troubleshooting a unit.   Five Reasons an Air Conditioner… Read More »

Our Picks for Best Wet Dry Vacuums for HVAC

Having a good Wet Dry Vac to clean up a mess or drain out water is a must have tool for a HVAC tech.   There are many sizes and brands to choose from in all different price ranges.   Portability is the main concern and storing it, taking it out and packing it should… Read More »

HVAC Contactors and Relays Explained

Contactors and relays are used on almost all heating, cooling, and refrigeration equipment for the operation of loads in the system.   Contactors relays are similar in their operation, because both contain sets of cant and a coil that is used to open or close the contacts.     The contactor is larger and capable… Read More »

Replacing a Relay Contactor on a Heat Pump

The contactor / relay in a heat pump controls the power coming into a unit. The main power is plugged onto one side from a breaker or disconnect, and the units blower motor, compressor, control board and everything else plug into the other side.   When 24 volts is sent to the contactor a coil… Read More »