Скачать или смотреть How can I check to see if my compressor is bad

To test your AC compressor, first turn off power and inspect the contactor and capacitor for damage. Use a multimeter to check compressor winding resistance; values should be consistent and not show open or short circuits. Listen for unusual noises or lack of humming when powered on, indicating failure

To check a package unit compressor, first ensure safety by cutting power, then visually inspect for damage and leaks, check electrical connections and the capacitor, and finally, use a multimeter to test for shorts to ground and winding resistance

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Steps for Checking Refrigerant Levels

Turn Off the AC and Remove the Cover. Turn off the AC unit and remove the cover to access the refrigerant level gauge or gauges.

Locate and Remove the Access Panel. .

Attach Refrigerant Pressure Gauges. .

Interpret Pressure Levels. .

Add Refrigerant (if Necessary