690-NC2
0690S20046 6-3
• Check heater bank continuity.
• The fault/high limit lamp is on, see the trouble shooting suggestions for this area
below.
The Fault/High Limit Lamp Is On
• Motor has overheated. (The blower motors are equipped with an internal thermal
switch). Turn the oven off and try to restart after the motor has cooled.
Possible causes:
1.) The motor bearing or winding has failed.
2.) Something is binding the motors or blower fans.
3.) The rear of the oven lacks sufficient clearance to allow proper air circulation.
• Oven temperature is too high. (Your oven comes with a high temperature limit
switch set at approx. 575 °F. This switch will reset when the oven has cooled.)
• A power interruption has occurred
No Steam
• The water line to the oven may not have been turned on or someone has turned it
off.
• Your water line filter may be plugged or need servicing.
• The water solenoid valve may be dirty and stuck shut.
• The water solenoid valve may have failed.
• The water pressure may be to low, the oven requires between 60-70 psi.
• The water spray nozzles inside the oven chamber which spray water into each of the
blower fans may be plugged, remove the nozzle assembly and clean.
• The nozzle assembly, which sprays water into the blower fans, is not vertical and is
not spraying the water directly into the fans as it should.
The Steam Will Not Stop /or Continuos Steam
It is normal for water to drip from the spray nozzles for several seconds after steaming,
however if it continues to drip or run, check the following.
• The water solenoid valve may be dirty and stuck open.
• The water solenoid valve may have failed.
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