HVAC Tips

Troubleshooting a Furnace by Isolating the Thermostat

•  Air Handler,  Troubleshooting,  Furnace

Learn how to troubleshoot a furnace by isolating the thermostat.

Troubleshooting Flame Failure

•  Furnace,  Troubleshooting

Nathan discusses how to troubleshoot a unit with flame failure.

Two Ways to Hook Gauges up to a Heat Pump

•  Troubleshooting,  Heat Pump

Nathan discusses the two ways to hook gauges up to a Heat Pump.

Troubleshooting a Unit Tripping the Circuit Breaker

•  Troubleshooting,  Heat Pump,  AC

Learn how to troubleshoot a unit that is tripping the main circuit breaker.

Troubleshooting the Open Limit Fault

•  Furnace,  Troubleshooting

Learn how to troubleshoot an open limit fault on a furnace.

Troubleshooting with Superheat and Subcooling (TXV) – Spanish

•  Troubleshooting,  AC,  Heat Pump

Troubleshooting the Pressure Switch Circuit

•  Troubleshooting,  Furnace

Here Greg Brunts explains how to quickly determine which pressure switch is causing an open pressure code on the control board when the furnace has more ...

How Smart is a Pressure Switch?

•  Furnace,  Troubleshooting

Here Greg Brunts explains how to properly determine if a pressure switch has failed or is it doing what it should do.

False Codes

•  Troubleshooting,  Furnace

Here Greg Brunts explains how high resistance in the limit circuit can give a false code on the control board.

Single Stage Furnace Limit Circuit

•  Furnace,  Troubleshooting

Here Greg Brunts explains how to troubleshoot the limit circuit on a single stage furnace using a voltmeter and an ohm meter.