When your air conditioner stops cooling properly, the cause can range from airflow blockages to refrigerant leaks or electrical faults. A methodical troubleshooting process can save time, money, and ...

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 ...

Before calling in a technician, there are several HVAC and AC troubleshooting steps you can take to save time and money. From checking filters and vents to testing refrigerant pressures and ...

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 ...