Troubleshooting
General Information
40
NO SAFETY KEY
•The safety key must be installed. Verify that the safety key is fully
inserted in the Emergency Stop switch. The code is reset in about 6 sec
-
onds, but the treadmill will now be at zero (0) MPH, requiring the user to
press the
SPEED
+
button to reset the system.
•If there is a malfunction in the safety system the error message changes
from NO SAFETY KEY to SAFETY KEY FAIL and the treadmill becomes
inoperable until power is cycled to reboot the system.
No power, blown in-line fuse
See “ESI SCR: No power, Blown In-line Fuse” on page
No power, blown in-line fuse
See “ESI PWM: No power, Blown In-line Fuse” on page
54.
“SAFETY SHUTDOWN Loss of
Speed Signal”
The speed sensor is not reporting any motor movement. This displays the
error message to the upper board.
For SCR board models; See “ESI SCR: SAFETY SHUTDOWN: Loss of
Speed Signal: Upper display lights but treadbelt does not move” on
page
For PWM board models: See “ESI PWM: SAFETY SHUTDOWN: Loss of
Speed Signal: Upper display lights but treadbelt does not move” on
page
“SAFETY SHUTDOWN Loss of
Speed Signal”
The speed sensor is not reporting any motor movement. This displays the
error message to the upper board.
See “ESI SCR: SAFETY SHUTDOWN: Upper display lights, treadbelt
moves, speed will not increase” on page
“SAFETY SHUTDOWN Loss of
Speed Signal”
The speed sensor is not reporting any motor movement. This displays the
error message to the upper board. See “ESI PWM: SAFETY SHUTDOWN:
Upper display lights, treadbelt moves, speed will not increase” on page
“Comm Error”, “CE Error”, or
“Communication error”
Occurs when there is a break in communication between the upper board
and the lower board. If the upper board does not identify signal to the lower
board it is likely the main upper harness has a poor connection, broken
wire, etc. Re-seat the main harness at the upper and lower board and if
required, verify continuity of the cable. Repair or replace as required.
Speed shown is not actual speed Speed needs to be calibrated (Home treadmills only). See “Speed Calibra
tion: PWM PCB Motor Control Treadmills” on page
DISPLAY MEMORY displayed
Checking for RAM and ROM memory within the programs of the upper
board. This will notify you if there is a problem with the software stored in
ROM on the upper board.
BELT OVERSPEEDING dis
-
played
1
Note:
During high elevation and low speed the role of the user’s weight and
gravity is likely to cause an Overspeed error.
This compares the requested speed to the actual speed of the treadmill to
confirm if the speeds of the treadmill are within specification. Speed fluctu
-
ation or overspeed can by caused by improper position of the speed sen
-
sor, a bad speed sensor, or a bad motor control board.
Recalibrate; see “Speed Calibration: PWM PCB Motor Control Treadmills”
on page
If problem recurs, test according to “Testing Speed Sensor” on page
49.
Table
6-2
Diagnostics (Continued)
Symptom
Probable Cause/Diagnostic Procedure
Summary of Contents for L7 Club
Page 1: ...L7 L8 L9 Treadmill 90 Series Service Manual...
Page 4: ...Grounding Instructions 4...
Page 16: ...Introduction Recommended Tools 16...
Page 26: ...Electrical Reference Harnesses 26...
Page 30: ...Routine Maintenance Maintenance Checklist 30...
Page 102: ...Replacement Parts 102 Figure 8 8 Control Panel 17 16 15 13 14 12 11 11 9 5 3 7 6 2 4 8 1...
Page 116: ...Replacement Parts 116...
Page 119: ......