ESI PWM: Upper display fails to light when START is pressed.
Troubleshooting
61
6.20. ESI PWM: Upper display fails to light when START is pressed.
NOTE: USE THIS FOR DIAGNOSING ESI- PWM BOARD
Error Code: No power to the upper console
Upper display fails to light when START is pressed:
If you have no power to the upper console, use a
voltmeter to measure
120VAC
from the outlet.
Do you have proper voltage at the outlet?
Check and reset the facility
breaker.
NO
Check the linecord for damage, frayed, or crushed.
With a voltmeter check the voltage at the linecord for
120VAC
at the end of the plug to the motor pan.
Do you have proper voltage at the linecord?
Replace the
PWM Linecord.
(70530)
NO
YES
Test linecord connector w/ switch by following the step below:
Connect your
RED
test lead from your voltmeter to the
BROWN P-1
wire connector on the lower board.
Connect your
BLACK
test lead into the
BLUE
P-3
wire connector on the lower board.
WITH THE VOLTMETER, DID YOU MEASURE 120VAC AT THOSE TWO WIRES?
Replace the
Linecord Connector w/ Switch.
(70861)
Is the
GREEN VAC PWR LED 9
lit on
the lower board?
(#6 ON ESI-PWM LOCATOR SHEET)
NO
Perform a continuity test on the in-line fuse. If the fuse is bad replace it
with the spare fuse located in the treadmill.
DID THE GREEN VAC LED 9 LIT UP AFTER REPLACING THE
FUSE?
(MDA-15 SLOW BLOW FUSE)
(IF FUSE BLOWS FOLLOW THE BLOWN FUSE FLOW CHART)
NO
Is the
GREEN VDC LED 2
lit on the
lower board?
(#4 ON ESI-PWM LOCATOR SHEET)
YES
YES
Replace the
Lower Board.
(70455)
NO
Replace the
Display Board.
Replace the
Membrane
Panel.
1) Unplug the upper harness wiring harness from the lower board and
inspect all the wires for any crimped, frayed, broken or loose wires. Be
sure that the harness is routed underneath the elevation motor and
secured on the plastic clip.
2) Unplug the upper harness from the display board and inspect all of the
wires for any loose wires or push pins. With a voltmeter, check for
proper voltage check from the
GREEN
&
BLACK
wires for
+12 VDC
or
better.
3) Conduct a membrane bypass test by jumping the ground and start pins
on the display board with your voltmeter set on continuity setting.
DID THE DISPLAY BOARD POWER UP AFTER YOU CONDUCTED THE
MEMBRANE BYPASS TEST?
YES
NO
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: ......