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TROUBLESHOOTING MODEL 400 RESTAURANT RANGES
PAGE 38 OF 64 OPERATOR’S MANUAL 1182299 REV 3 (05/05) DRAFT
TROUBLESHOOTING
TROUBLESHOOTING THERMOSTATIC GRIDDLE
Set the temperature to 300°F and
allow the griddle to reheat.
Refer to flowchart on page 35 for
burner troubleshooting.
THERMOSTATIC GRIDDLE
TROUBLESHOOTING
If no flame is established put a
soap and water mix to the orifice of
the burner to check for gas flow.
Turn the screw counter clockwise
to establish or increase the flame.
Put the bezels and knobs on the
griddle thermostats.
Set the griddle thermostats
to 300°F.
If no flame is established at the
bypass setting replace the
thermostat.
Reinstall the bezels and push out
the silver center of the knob from
the rear of the knob and reinstall.
Be sure the thermostat bulbs are
pushed completely into the tubes
under the griddle.
Remove the knobs and valve
cover panel.
Observe the burners while heating
griddle for poor operation.
Remove the knobs and bezel and
install the valve cover panel.
After griddle has heated for
approximately 20 minutes, observe
that the flame has decreased in
height.
Set the griddle knobs to the
midpoint between the two lines just
after the OFF position.
This is the bypass setting.
Check that there is a ¼ in. flame at
each port.
There is a slotted screw below the
stem on the thermostat valve.
If gas is flowing turn the bypass
screw until flame is set to
specifications.
Turn the screw clockwise to
decrease the flame.
If the flame is not correct remove
the knobs and bezel. See
illustration on page 32.
Continues on Next Page
CAUTION! WIRING BEHIND THE
PANEL.