The "775" or "Cannot Detect SWM" error on a Winegard DirecTV Trav'ler indicates that the receiver is unable to communicate with the LNB (Low-Noise Block downconverter). The following troubleshooting steps can help resolve this issue.

Troubleshooting Steps:

1. Power Cycle the Antenna: Power on the antenna and allow it to search and lock onto the signal. If it's already locked, power cycle it to ensure there's no temporary issue with the LNB or its cable connection to the turret. If the antenna does not lock on signal see our article to troubleshoot that issue: Troubleshoot: Winegard DirecTV Trav'ler Not Locking Onto Signal

2. If the error persists after the antenna locks:

   • Check the SWM Power Inserter:

     • Locate the SWM power inserter and splitter.
     • Unplug the power inserter and plug it back in.
     • Check if the light on the power inserter illuminates.

   • If the light DOES NOT light up:

     • Disconnect the coax cable from the "PWR to SWM" port on the power inserter.
     • Unplug and replug the power inserter power cord.
     • Check if the light illuminates now

   • If the light STILL does NOT light up after disconnecting the coax:

     • The power inserter likely needs replacement
     • Submit a support ticket to Winegard Customer Support for warranty or replacement options

   • If the light DOES light up after disconnecting the coax:

     • Reconnect the coax cable
     • Check if the light remains lit

   • If the light remains lit after reconnecting the coax:

     • The issue might be with the coax cable itself
     • Run an external coax cable from the antenna's base C port through a door or window to the power inserter's "PWR to SWM" port
     • If this resolves the issue, the original cable needs replacement. You may need to contact a local RV dealer for assistance

   • If the light DOES NOT remain lit after reconnecting the coax:

     • The problem is likely within the turret
     • Submit a support ticket to Winegard Customer Support for warranty or repair options

   • If the splitter is located between the power inserter and the antenna

     • Remove the splitter from the coax line
     • Check if the error disappears

   • If removing the splitter DOES NOT fix the issue:

     • Run an external coax cable from the antenna's base C port through a door or window to the power inserter's "PWR to SWM" port
     • Check if the error disappears

   • If the error STILL persists:

     • Bypass the turret by powering off the interface box and connecting the coax cable at base port C directly to the vertical port C using a coax coupler/barrel connector
     • Check if the error disappears

   • If bypassing the turret DOES NOT fix the issue:

     • The problem might be with the power inserter
     • Reconnect the splitter in this sequence: Antenna -> Splitter -> Power Inserter
     • Connect the receiver to an open port on the splitter instead of the power inserter
     • Check if the error disappears. If it does, the power inserter needs replacement

   • If NONE of the above steps resolve the issue:

     • The problem might be with the receiver itself
     • Contact DirecTV to get a replacement receiver

Important Considerations:

• Always prioritize safety when working on your antenna, especially when accessing the roof of your vehicle
• If you encounter any difficulties or uncertainties during the troubleshooting process, do not hesitate to submit a support ticket to Winegard Customer Support for further assistance.