TRACKMASTER
Ch. 9
Troubleshooting
317-160-406 Rev 4
TMX428 TMX428CP & TMX58 Service Manual
83
May 2021
Smart Power Supply Error Code 5 Flow Chart 1N “Missing Signal from External Speed
Sensor”
1N
Is the Red LED D13
flashing 5 times with
4 second pause on the
Smart Power Supply
FG0495?
No
Yes
Turn the treadmill power switch
OFF (O) for 10 seconds then
turn the power switch ON (-).
Is the Red LED D13
on the Smart Power
Supply FG0495 on
continuously?
Yes
No
Is the Red LED D13
flashing on the
Smart Power Supply
FG0495?
Yes
Treadmill should
be operational.
No
Send a Start Belt Command or Press
Start if equipped with controller.
Speed the treadmill up to 1 MPH.
With the treadmill
running at 1.0
MPH for 1 minute,
is the Red LED
D13 on?
Replace Speed Sensor
317-160-305
Yes
Verify that the speed sensor gap to flywheel
magnet is 1/4” and connector is secure on J10
on the Smart Power Supply FG0495.
Verify when the fly wheel magnet passes by the
speed sensor that D10 LED on the Smart Power
Supply FG0495 the red led light is on then goes
out after the speed is not present.
Treadmill should
be operational.
Yes
No
Is the Red LED D13
flashing 5 times with
4 second pause on the
Smart Power Supply
FG0495
Is the Red LED D10 on
the Smart Power Supply
FG0495 flashing ON &
Off when passing by
flywheel magnet?
Yes
No
Replace Smart Power Supply
317-160-199
1I
1I