When should I call a professional HVAC technician for the York AC E5 error code?

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Grade: Education Subject: Support
When should I call a professional HVAC technician for the York AC E5 error code?
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You should call a professional HVAC technician if you are not comfortable working with electrical components, if you've attempted a reset and the error persists, if you've inspected the sensor and wiring and found no obvious issues, or if you suspect a refrigerant leak or control board malfunction. A qualified technician has the tools and expertise to accurately diagnose and repair the problem safely.