F

UnclassifiedTransfer Switch

What This Code Means

Letter F is displayed between source symbols; No solid line from the load symbol to either source symbol; Contactor position is unknown

Possible Causes

•Monitor is in service mode
•Transfer switch fault

Suggested Actions

1Refer to the transfer switch literature to diagnose and correct the fault

Related Rehlko Fault Codes

FAIL TO OPEN SOURCE1 FAIL TO OPEN SOURCE2 CONTACTOROK GENLIMITSWITCHFAIL BUSLIVEDEAD GENSWITCHINGDEVICEFAILED ATS COMERROR MODULESTATUSCHANGE PROTECTIVERELAYTRIPPEDCONTACTOR F1 F2 EXER NOT SCH W

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