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How to Check Vacuum Pressure with a Manometer (HVAC Training)
How do you use a **manometer** to check vacuum pressure? One of the easiest problems to fix when working on **gas heating** systems is a clogged pressure port for the **vacuum switch**. Check out these **troubleshooting** tips and learn how to find the pressure port and properly use your **hvac troubleshooting** skills like an **hvac tech** on ...
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