Refrigerator Troubleshooting Diagram

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Category: Refrigerator Compressor

Refrigerator Compressor

Semi-Hermetic Compressors Field Repairs

Posted on November 10, 2019November 20, 2019 by sam

Semi-hermetic compressors are frequently used on light commercial air conditioning and refrigeration equipment. With the cast iron body and bolted head, oil pan, oil pump,…

Refrigerator Compressor

Refrigerator Compressor Reed Valves

Posted on December 23, 2010 by sam

When the compressor is in a refrigeration system and in operation, if the suction-side and high-side pressures are almost the same, the valves might be…

Refrigerator Compressor

Reverse Rotation Method to Break Locked Rotor

Posted on December 23, 2010 by sam

■     Turn off power and remove the wiring from the hermetic compressor motor terminals. ■     Study Fig. 3-15. ■     Wire line one to common and…

Refrigerator Compressor

Refrigerator Compressor Hot Shotting

Posted on December 23, 2010 by sam

This is another method that can be used to try to break loose a locked rotor in a single-phase compressor. ■     Make sure the start…

Refrigerator Compressor

Refrigerator Compressor Locked Rotor Test

Posted on December 23, 2010 by sam

The compressor hums but will not start. The overload relay usually opens the common winding either internally or externally, this allows the windings to cool…

Refrigerator Compressor

Refrigerator Compressor Rotation Testing

Posted on December 23, 2010 by sam

The single-phase hermetic compressor has a fixed rotation of its electric motor. In three-phase applications rotation is very important. The compressor might have a directional…

Refrigerator Compressor

Refrigerator Open Windings Compressor Testing

Posted on December 23, 2010 by sam

Place a test probe on terminal one. With the other probe touch terminal two. The meter needle should deflect. This shows there is a circuit.…

Refrigerator Compressor

Refrigerator Grounded Compressor Testing

Posted on December 23, 2010 by sam

Scrape the copper suction line on the compressor so it shines. This can be done with a knife blade or a piece of sand cloth.…

Refrigerator Compressor

Refrigerator Compressor Testing

Posted on December 23, 2010 by sam

With the compressor being the most expensive component in the system, it is wise to be sure it is bad before you condemn it. For…

Refrigerator Compressor

Refrigerator Compressors Electrical Connecting Terminals

Posted on December 23, 2010 by sam

Two types of terminal connections are used with hermetic and semi-hermetic compressors. On the hermetic compressors, pins or terminals are sealed within bakelite or ceramic.…

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