Specifications

6 / TROUBLESHOOTING

A stylized letter “m” (nn) will be displayed in the left window, and the

maintenance prompt number will be displayed in the right window.

The maintenance prompt will be displayed for two seconds before

each start of the treadmill, until the prompt is cleared. The prompt can

be cleared by entering the diagnostic mode, test 12. See page 47.

nn 1: Clean Treadmill

This message appears every 500 miles (805 km).

See Chapter 5 for information on cleaning the treadmill. Proper

cleaning will help improve air circulation, eliminate excessive heat

buildup in and around the drive and elevation motor assembly, and

reduce wear on the motors.

nn 2: Check Current Draw

This message appears every 1,000 miles (1609 km).

This can be done in the diagnostic mode, test d3. Check the current

draw at 3 mph (4.8 kph) and with a load of approximately 180 lb. (82

kg) on the treadmill. At this speed and load, the treadmill has a

maximum allowable current limit of 14 amps @ 115 VAC or 8 amps

@ 220 VAC. If you check the current draw at regularly scheduled

intervals, you can spot trends in the motor’s performance. If the

current draw is above or nearing the allowable limits, there may be

a drive component that is not performing properly, which could

compromise the integrity of the rest of the treadmill’s drive system.

If the current draw is above or nearing the above limits, call your

local CYBEX dealer or call CYBEX for the name of a service

representative near you.

nn 3, nn 4, and nn 5

The maintenance suggested by the next three messages (nn 3, nn

and nn 5) should be performed by a qualified CYBEX treadmill

repair technician. If you see any of these messages, contact your

local authorized CYBEX dealer or CYBEX Customer Service for

help.

nn 3: Check Motor Brushes

This message appears every 2,000 miles (3219 km).

Under normal circumstances, the drive motor brushes will last in

excess of 5,000 hours. This message reminds you to check the

brushes at routine intervals for any signs of abnormal wear.

Any arcing, pitting, or burning of the brushes, or a brush that is less

than half its original length (7/8”), indicates the need for brush

replacement. The tightness of the brush cap and brush holder mount

in the drive motor housing should also be checked at this time.