Sometimes the Lube Alarm message is caused by a timer value in the MISC parameters called Lube Timer (min), sometimes it comes from the lube pump as an input to the control.
Go to F10-UTIL, F10-Parms, F1-SETUP, F1 LEVEL. At the Validation Code, type in PROTO3 enter, at Access Level type another 3. Press ESC several times to get back to the Main Menu.
Now, go to F6-DISPL, F4-DIAG to see the Inputs and Outputs. X-in-6 is where the input from the lube fault will be displayed.
When you get the alarm, look for the input - a 0(zero) means no input, a 1(one) is an input. If you have the error but no input, go change the MISC parameter accordingly. If you do get the input, you could clip the wire.
Because the error goes away when you press the ESC key, I think you will want to change the parameter. Set it to a 0(zero) to turn it off.