50FREQUENTLY ASKED QUESTIONSQ. Why is time displayed as a negative number (i.e. – 1:15)?A. The treadmill’s computer displays time in minutes and seconds (MM:SS) for workout times less than 1 Hour, and in hours andminutes ( – H:MM) for workout times 1 hour or greater. – 1:15 represents one hour and 15 minutes.Q. Why can’t I change the speed in warm up or cool down?A. Warm up and cool down speeds are based on parameters recommended by the American College of Sports Medicine andcannot be overridden. To avoid undue cardiovascular stress, warm up begins at a lower percentage of the program’s startingspeed and gradually takes you to the programs starting speed. Conversely, cool down gradually reduces speed based on apercentage of the programs ending speed.Q. How do I find out the total hours and miles on my treadmill?A. Insert the magnetic safety key, when the “set weight” indicator begins to flash, press and hold the PROGRAM INTENSITYLEVEL + button the total time and mileage will appear in their respective windows and the power supply software version willappear in the INCLINEQ. Can I eliminate warm up and/or cool down from a Variable Intensity Program?A. Yes. If you wish to remove the warm up and/or cool down phases prior to starting your program, press the WARM UP/COOLDOWN button until the corresponding indicator light is no longer illuminated. While in the warm up mode, press the Warm Up /Cool Down button and you will advance into the main phase of your program. While in the main program mode press the WarmUp / Cool Down button to advance to the cool downQ. Why is dust accumulating behind and/or underneath my treadmill?A. This is normal. The dust is a combination of the PVC belt material and the phenolic deck surface as it wears.