Filter
Top Products
Definition:
"SUDDEN SPEED
CHANGE."
Possible Cause:
RPM pick-up
misaligned.
Note 1:
Press and hold
the "0", "1", & "START"
keys down at the same
time, then release the "1"
key. The display will
read: MAINTENANC,
then
press and release the
"8" key.
Or, manually hold the
"8" key and
simultaneously turn the
treadmill on by the on &
off switch.
Both methods will
engage
"Test Mode".
Engage
"MAINTENANCE"
mode. Verify RPM feedback
in "Test Mode". See (note
1)
Start
Note 4:
Verify that RPM
feedback is being
displayed under speed
as the running belt
moves.
Display reads:
XXX 3 .0
( at 0%, XXX will read 240)
Press the "+" and bring
the middle number 3 up to
50.
Does
the running
belt move
?
Left motor shroud and
verify PWM LED for
110v units or MOTOR
CONTROL LED for
220v units response.
See (note 2)
Diagram #1
Note 2:
Verify that the
PWM LED is flashing,
while the treadmill is on.
The PWM LED indicates
a valid control command
is being sent from the
Display Board to the
M.C.B. If the LED is not
flashing, check
connection and look for
pinch or tear marks.
NO
Does
display read
RPM feedback
see (note 4)
?
Note 3
: Adjust the
potentiometer clockwise
or counterclockwise.
1B1A
Code: SP CNG Flowchart
Does
drive motor
surge
?
Diagram #1
Adjust the IRCOMP.
See (note 3)
Diagram #2
YES
Does
drive motor
surge
?
YES
YES
NO
NO
1C
1D
YES
NO
4.39