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.

How To Read an HVAC Temperature Pressure Chart

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

ECM 2.3 Variable Speed Blower Motor Troubleshooting

ECM motors are commonly used in HVAC systems these days as blower motors. This includes air conditioners, heat pumps, and furnaces. ECM Motors can adjust the airflow depending on what the system is getting for feedback. First of all, there are two components to an ECM motor the control module and the motor itself. The… Read More »

3 Fixes for a Loud Noisy Air Conditioner Unit

A noisy, loud air conditioner can be an annoyance, especially when sleeping or watching TV. Not all air conditioners are built the same when it comes to how much noise they make. Some are so quiet you don’t even know it has turned on, while others can wake you up in the middle of the… Read More »

How to Quiet an Air Conditioner That Rattles or Buzzes

As an air conditioning unit ages, it can start to make rattling or buzzing sounds that can be distracting. A rattling or buzzing air conditioner unit is no doubt very annoying and can be fixed to operate more quietly. While calling an HVAC technician is always recommended, there are some things that the DIYer can… Read More »