FREQUENCY HIGH SD *
UnclassifiedGeneral
What This Code Means
Governed frequency exceeds 110% of the system’s frequency setpoint for more than 10 seconds
Suggested Actions
- 1Contact an authorized dealer for service
Related Rehlko Fault Codes
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Get a diagnosis walkthrough for FREQUENCY HIGH SD * on your specific Rehlko unit — cited to the OEM manual, not a forum guess.
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