Well-known industry author and instructor Jim Johnson is offering a new video for technicians who want to sharpen their troubleshooting skills. "This HVAC training video program, is available in DVD ...

Effective use of a VOM (Volt Ohmmeter) Reading schematics and diagrams Best Practices for troubleshooting heat and cooling Furnaces and Heat Pumps Low Voltage and High Voltage Circuits Description of ...

There are several HVAC issues that you can fix yourself. If your system isn’t working as expected, your first order of business should be checking your air filter and replacing it if necessary. If you ...