400W Series Installation Manual Page 6-9190-00356-02 Rev. GAlert Text Possible Cause SolutionVLOC needs service (430W only) • The unit has detected a failurein its VLOC receiver. TheVLOC receiver may still beusable.• Contact Garmin technicalsupport.• Try pressing the switch againto cycle its operation.VLOC remote transfer key isstuck (430W only)• The remote VLOC transferswitch is stuck in the enabled(or “pressed”) state. • Contact Garmin technicalsupport.• Try pressing the VLOC flip-flopkey again to cycle itsoperation.VLOC transfer key stuck(430W only)• The VLOC flip-flop key is stuckin the enabled (or “pressed”)state.• Contact Garmin technicalsupport.• The 400W- Series unit cannotcommunicate with the WX-500.• Check for proper configuration• Check the wiringWX-500 device has failed• The WX-500 is reporting asystem failure.• Refer to the WX-500installation manual foradditional troubleshootinginformation.• Check for proper configurationof WX-500WX-500 heading has failed • The WX-500 is reporting invalidheading data.• The failure may be within theWX-500 or other connectedequipment.6.3 Contacting the Factory for AssistanceIf the 400W Series unit fails to operate despite troubleshooting efforts, contact Garmin Technical Supportfor assistance.GARMIN International, Inc.1200 East 151st StreetOlathe, KS 66062-3426USAPhone: 913.397.8200FAX: 913.397.8282http://www.garmin.comBe prepared to offer the following information about the installation:• Installation configuration (list of any accessories)• Model number, part number with mod levels, and serial number• Software Versions• Description of problem• Efforts made to isolate the problem