Perform the display test if your StairMaster 4000PT console has missing lights during use.
StairMaster Stepper 4000PT Display Test
This test checks for inoperable Light Emitting Diodes (LEDs) in the console display and the text bar. If any LED will not light, replace the console.
- Press  to start the test.
- All LEDs in the console display will flash on and off as a block. The 26 letters (A-Z) will scroll across the text bar.
- Press [CLEAR] to end the test.
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