ESI SCR: SAFETY SHUTDOWN: Upper display lights, treadbelt moves, speed will not increase
Troubleshooting
57
6.16. ESI SCR: SAFETY SHUTDOWN: Upper display lights, treadbelt moves, speed will not
increase
NOTE: USE THIS FOR DIAGNOSING ESI-SCR BOARD
Error Code: SAFETY SHUTDOWN Loss of Speed Signal
Upper display lights up treadbelt moves but the speed will not increase
Enter Diagnostic Speed Mode. Follow the diagnostics & calibration button sequence page:
:
In diagnosc mode does the
ORANGE SPEED
SENSOR LED 6
illuminated on the SCR board upon
start up?
(#6 ON ESI-SCR LOCATOR SHEET)
(#5 ON ANTA-PWM LOCATOR SHEET)
Remove the speed sensor cover and check to
make sure that the speed sensor is intact and
free from dust or obstrucon in the speed
cog and the sensor.
ANY OBSTRUCTION FOUND?
NO
YES
Clean out the dust or obstrucon that may have
collected in the speed cog and speed sensor.
DID THE SPEED SENSOR LED ILLUMINATE?
NO
NO
Replace the
SPEED SENSOR.
(P/N 70621)
Unplug the 3 pin wire speed sensor connector at
the lower board. Check for a loose, frayed,
crimped, or broken wires or connecon.
DID YOU FIND ANY DAMAGED WIRES?
Unplug the 4-pin upper harness connector from the
ESI-SCR
lower board. Check for any loose, frayed, crimped, or
broken wires or connecon. Specifically look at (
ORANGE
)
wire.
(Perform connuity test on the ORANGE wire)
DID YOU FIND ANY DAMAGED WIRES?
YES
NO
Replace the
UPPER HARNESS.
(P/N 70324)
NO
Check voltage reading at the speed sensor.
Using your voltmeter connect your
RED
probe to the red
wire and the
BLACK
probe to the black wire. Measure to
see if the sensor is reading is about 4.9 vdc from the speed
sensor connector.
Check for Speed Sensor Feedback.
1)
Enter into diagnosc speed mode.
2)
Press & hold the speed (+) buon unl the speed
reaches to 7 mph in programmed speed
DID YOU GET PROPER VOLTAGE READING OR A SPEED
SENSOR FEEDBACK READING?
Replace the
SPEED SENSOR.
(P/N 70621)
Replace the
Lower Board.
(110-V Lower Board P/N 70080)
(220-V Lower Board P/N 70081
)
NO
YES
YES
YES
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: ......