Lippert leveling system · 1 model line

Lippert leveling system: Comm Error

Lippert documentation lists “Comm Error” as “Communication between controller and touchpad has been lost”.

What this message means by model

Model lineWhat the manufacturer saysSource
Ground Control LCD 4-point / 6-pointThe Lippert Ground Control LCD troubleshooting manual lists Comm Error as communication between controller and touchpad has been lost.Lippert Ground Control LCD Troubleshooting and Service Manual

What you can safely check

  • Stop leveling movement.
  • Record whether the touchpad reconnects after a normal power cycle.

Stop and call a technician for

  • Jack motors, hall sensors, controller placement, harness repair, calibration, homing, high-current wiring, and controller replacement should follow Lippert service procedures.

Never use leveling jacks as service stands. Keep people clear of jacks and pinch points and do not service jack wiring or motors unless qualified.

Write this down before you call

  • controller part number
  • touchpad LCD message
  • jack positions
  • battery voltage from installed monitor

Other codes on Lippert Ground Control leveling systems

Full table: Lippert Ground Control leveling systems

  • Auto Level Fail Auto level could not complete because of ground conditions or zero-point setup / An unsec…
  • BAD CALIBRATION Sensor calibration values are out of range / Trailer zero point was not set correctly
  • EXCESS ANGLE Excessive angle reached during auto operation or an unsecured controller / An unsecured c…
  • EXCESSIVE ANGLE Excessive angle reached during manual operation or an unsecured controller
  • EXTERNAL SENSOR A bad connection or wiring from the controller to the rear sensor / Bad connection or wir…
  • FEATURE DISABLED Hitch recognition, touchpad power cycling, or zero-point setup preventing the feature / H…
  • FUNCTION ABORTED A button was pressed during automatic operation / An automatic leveling sequence was abor…
  • Hall Effect Short A short circuit detected in a hall-effect circuit
  • Internal Sensor An internal sensor problem
  • JACK TIME OUT The requested auto operation exceeded its time limit / The system could not level in the …
  • LF Jack A hall-signal, open-circuit, short-circuit, or communication problem at a specific jack
  • LM Jack A hall-signal, open-circuit, short-circuit, or communication problem at a specific jack
  • LOW VOLTAGE Battery voltage dropped below 10.8 V DC / Bad connection, wiring, discharged battery, or …
  • LR Jack A hall-signal, open-circuit, short-circuit, or communication problem at a specific jack
  • Blinking Red A standard error that must be read on the OneControl Touch Panel or OneControl App
  • ***ERROR*** A special jack error screen requiring the specific affected jack message
  • HALL POWER SHORT A short circuit on one or more jack hall-effect power lines
  • Left-Front Jack Fault A left-front jack hall signal, open-circuit, short-circuit, or communication problem
  • Left-Mid Jack Fault A left-middle jack hall signal, open-circuit, short-circuit, or communication problem
  • Left-Rear Jack Fault A left-rear jack hall signal, open-circuit, short-circuit, or communication problem
  • OUT OF STROKE An unsecured controller or uneven/sloped site causing stroke limits / A jack reached maxi…
  • Right-Front Jack Fault A right-front jack hall signal, open-circuit, short-circuit, or communication problem
  • Right-Mid Jack Fault A right-middle jack hall signal, open-circuit, short-circuit, or communication problem
  • Right-Rear Jack Fault A right-rear jack hall signal, open-circuit, short-circuit, or communication problem
  • Slowly Blinking Faded Red A Rev
  • Solid Red Low battery on the auto leveling control touch pad
  • RF Jack A hall-signal, open-circuit, short-circuit, or communication problem at a specific jack
  • RM Jack A hall-signal, open-circuit, short-circuit, or communication problem at a specific jack
  • RR Jack A hall-signal, open-circuit, short-circuit, or communication problem at a specific jack
  • AUTO LEVEL FAILURE An unsecured controller or voltage drop during auto leveling
  • CAN'T COMPLETE LEVEL IN THIS LOCATION. PLEASE RELOCATE RV TO FLATTER TERRAIN The trailer is parked on a steep incline and the front cannot be leveled
  • Tongue Jack Fault A tongue jack hall signal, open-circuit, short-circuit, or communication problem

Related troubleshooting guides

Official sources