We have an Lr message on our sleep mattress control. What does it indicate?

Inflate both air chambers to 100. Let the remote go blank after both air chambers have reached 100.
Wake the remote by pressing "L" or "R". Hold down the up arrow button until the remote shows "20." This starts a diagnostic test, which will take about 20 minutes.

Write down the results of the test and run a second diagnostic test. If either the first or second diagnostic test shows a "no" after the test, your air chamber is not losing air. You can reconnect the hoses and use the bed. If either test shows "LL" or "Lr" call customer service at 1-888-580-9237 and give them the results of both diagnostic tests