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Dual-Compressor Module Technical Support and Service
26 2006SSD-75 R4 (10/10)
5.3 Platform Symptoms Diagnosis
Use the following guidelines to troubleshoot operating problems.
Table 6 Platform troubleshooting guidelines
Problem
Recommended Actions
Low Gas
Flow
• Low inlet pressure
• Insufcient gas supply
• High temperature
• Bypass valve open
• Low Compressor speed
• Restricted inlet screen
High Oil
Carryover
• Saturated or dirty secondstage oil separator
• High oil level
• Restricted scavenge orice
• Insufcient back pressure
• Oil dilution
Compressors
Won’t Run
• Determine drive status.
• Is inhibit circuit closed?
• Is run signal present?
• Does the VFD indicate a fault code?
Incorrect
Compressor
Speed
• Low inlet pressure
• High discharge pressure
• High temperature, fan, low oil, oil cooler
• Problem with speed control sensor and related components
High
Temperature
• Low oil level
• Restricted oil lter
• Blocked oil cooler air ow
• Oil cooler fan not operating
• Operation conditions outside of Compressor Module specications