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Nautilus® Sport Series Treadmill Service Manual
Condition / Problem Things to Check Solution
Heart Rate Receiver Try the following 3 procedures:
1 - Move the Heart Rate Receiver as
far away from the upper electronics as
possible.
2 - Mount the Heart Rate Receiver to the
upright.
3 - Mount the Heart Rate Receiver using a
small piece of foam to soften the vibration.
Or replace Heart Rate Receiver.
Electronics If all of the above is fine, then change the
electronics and calibrate.
17. Speed Display is
inaccurate.
Electronics in MPH or KPH Push the START button - the speed
should be at .5 MPH. If at .8 KPH, it is
in KPH mode. Change to MPH. See the
Conversion to Metric Procedure.
18. Rock BAR does not work.
Check Connection to Console
and Check Connection to Rock
BAR CHN
If all connections are okay change cable.
If still does not work, change Rock BAR.
19. Grip Heart Rate Monitor.
Connection to the Grip Heart
Rate.
Connection to the Heart Rate
Board.
Check for any damage to the
cable from Grip to HR-board.
If all connections are okay, change HR-
board.
20. Speed Display is
Inaccurate.
Calculate the Belt Speed. Set speed at 3 MPH and count revolutions
of running belt in 1 minute. Then do the
following calcualtion:
T514 or T516: (Revolutions x 10.2917 x 60)
divided by 5280 = _____ MPH.
T518: (Revolutions x 10.7917 x 60) divided
by 5280 = _____ MPH.
ELECTRICAL AND MECHANICAL TROUBLESHOOTING GUIDE