HVAC Tips

Category: Furnace

29 HVAC Tips
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Troubleshooting the Pressure Switch Circuit

  •  Furnace,  Troubleshooting

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 ...

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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.

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False Codes

  •  Furnace,  Troubleshooting

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

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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.

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Troubleshooting theRefrigerant Circuit

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