28Inspect and tighten all parts of the elliptical regularly.Replace any worn parts immediately.To clean the elliptical, use a damp cloth and a smallamount of mild soap. IMPORTANT: To avoid damageto the console, keep liquids away from the consoleand keep the console out of direct sunlight.CONSOLE TROUBLESHOOTINGIf the console does not turn on, make sure that thepower cord is fully plugged in. If lines appear in theconsole display, see HOW TO CHANGE CONSOLESETTINGS on page 26 and adjust the contrast levelof the display.If the console does not display your heart rate whenyou hold the handgrip heart rate monitor, or if the dis-played heart rate appears to be too high or too low, seestep 5 on page 22.If the console does not display your heart ratewhen you use the chest heart rate monitor, seeTROUBLESHOOTING on page 15.HOW TO CALIBRATE THE RAMPIf the ramp is not functioning properly, the ramp mayneed to be calibrated. To calibrate the ramp, press andhold the 10 Calorie button for several seconds until thetest mode appears in the display.Press the 10 Calorie button again. Then, press the1 Step Power Ramp increase or decrease button tocalibrate the ramp. The ramp will move upward anddownward as it calibrates.When the ramp stops moving, the ramp is calibrated.Then, press the 10 Calorie button repeatedly to exit thecalibration mode.MAINTENANCE AND TROUBLESHOOTING