System Operation and Maintenance
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6.10. Mechanical Failure
The mechanical failure of the compressor cannot be determined by burning smell. User should try to rotate the motor. If
a mechanical failure is confirmed, the compressor must be replaced. If the motor is burned out, eliminate the factors that
caused the motor to burn out and clean the system.
Pay high attention to the compressor motor burnout, that is usually caused by improper system cleaning.
6.11. Electrical Failure
Electrical failure can be determined by the obvious pungent smell. If severe burns occur, the lubricant will turn black and
become acidic. In the event of electrical failure and the complete burnout of the compressor motor, measures must be taken
to clean the system to eliminate acidic substances in the system and avoid such failures in the system in the future.
Note: The replacement of the compressor needs to be carried out under the guidance of professionals. For replacement,
contact Vertiv technical support engineer.
Note: The damage caused to the compressor due to improper cleaning will not be covered in the warranty and related
details are mentioned in the warranty clause.
When the compressor is completely burned out, the compressor should be replaced along with the filter, and followed by
checking of the electronic expansion valve at the terminal. If the electronic expansion valve fails, it should be replaced.
Prior to the replacement, it is necessary to clean the system. If user are not sure about the cleaning method, consult the
Vertiv local representative.
