One of the most common questions we get from techs is about using a voltmeter to diagnose a high voltage circuit. It's especially tricky when a tech is used to working on a low-voltage or 120V circuit, where there is a clear “hot” side of the circuit and a clear “grounded” side of the circuit. […]

Most controls and thermostats will have some sort of cycle rate per hour setting that kicks in to prevent over-cycling once the setpoint is reached. These cycle settings don't kick in until the system starts achieving setpoint, so don't worry if it will shut off if it's set to 70° in heat mode and it's […]

This article was written by my good friend Neil Comparetto, a contractor and industry influencer who is helping shape IAQ for the HVAC industry in the US for the better. Thanks, Neil! Indoor air quality (IAQ) monitors can tell you a lot about the air you are breathing. We find that the information is valuable […]