OVM_FT-0113
6
Slider Doesn’t Complete Travel Or Doesn’t Move At All
Slider Doesn’t
Complete Travel Or
Doesn’t Move At All
Manually move slider and
assure pinion gear is fully
engaged with rack gear
over its entire travel
Pinion gear does
not fully engage
rack over entire
travel
Realign slider
and wings, then
reset gear
depth
Pinion gear does
fully engage rack
over entire travel
Go to
Point A
(page 15)
Mark a line on the
end of stepper
motor shaft and
the gear hub
Check that both
the stepper motor
shaft and the gear
are turning
In power on mode,
before setting cook
temp, use triangle
button to move
slider left and right
Motor shaft is
spinning and gear
is not
Both gear and
shaft are not
spinning
Align the gear to
the rack
Tighten/replace
the two set
screws on the
gear
Power off the
disconnect switch
Manually move slider
across entire range
in both directions
checking for areas of
binding or interference
No binding or
interference
observed
Binding or
interference
is observed
Check that stepper
motor connections
are OK
Assure food doesn’t
extend over cooking
tray and isn’t too high
for door opening
Food size and
positioning is OK
If food size or
positioning is not
OK, correct this
Check linear bushing
and rolling bushing
Linear bushing
and rolling bushing
are not OK
Linear bushing
and rolling bushing
are OK
Replace
faulty
bushing(s)
Realign slider
and wings
Stepper motor
connections are
OK
Stepper motor
connections are
not OK
Correct
stepper motor
connections
Disconnect motor
from relay board
Check for 1 to 2
ohms resistance for
both of the stepper
motor windings
Each motor
winding is between
1 and 2 ohms
Each motor
winding not between
1 and 2 ohms
Replace
stepper
motor
Replace
relay
board
Replace
the 24 VDC
power
supply
24 VDC supply
output is OK
24 VDC supply
output is not OK
Check the output of
the 24 VDC supply
while a motion
command is in effect
