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NOTE:
To avoid repeat compressor failure, always inspect the condition of the refrigerant oil and take the appropriate corrective action before installing the replacement compressor.
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| Clean oil no debris present |
No corrective action necessary. |
| Clean oil with debris present |
- Inspect the suction port of the replacement compressor for presence of a suction screen. If the replacement compressor does NOT contain a suction screen, install a suction screen in the line.
- Replace the desiccant or component containing the desiccant.
- Replace the desiccant filter if applicable.
- Remove and inspect the high pressure side filter (if applicable).
- Remove, inspect, clean or replace the orifice tube.
- If the system has a front orifice tube and is equipped with a filter in the rear auxiliary line, remove, inspect, clean or replace the filter.
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| Dark brown/black and/or pungent/unusual odor with no debris present |
- Replace the desiccant or component containing the desiccant.
- Replace the desiccant filter if applicable.
- Flush the refrigerant system.
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| Dark brown/black and/or pungent/unusual odor with debris present |
- Replace the desiccant or component containing the desiccant.
- Replace the desiccant filter if applicable.
- Flush the refrigerant system.
- Inspect the suction port of the replacement compressor for presence of a suction screen. If the replacement compressor does NOT contain a suction screen, install a suction screen.
- Remove and inspect the high pressure side filter if applicable.
- Remove, inspect, clean or replace the orifice tube.
- If the system has a front orifice tube and is equipped with a filter in the rear auxiliary line, remove, inspect, clean or replace the filter.
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| Oil overcharge |
Flush the refrigerant system. |
| Refrigerant contamination |
Flush the refrigerant system. |
| Hybrid polyester refrigerant oil (POE) contamination |
- Flush the refrigerant system.
- Replace the desiccant or component containing the desiccant.
- Replace the desiccant filter if applicable.
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