10
TroubleshootingGuide Models 904/906
Section 7 Troubleshooting Guide
PROBLEM PROBABLE CAUSE REMEDY PAGE
REF.
1. The unit will not operate. a. The power switch is in the
“OFF”position.
a. Place the power switch in the
“ON” position.
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b. The unit is unplugged. b. Plug unit into wall receptacle. 1
c. The oven door is open. c. Closethe oven door. -- --
d. The main power supply is off. d. Check the fuse box. -- --
e. The door switch is faulty. e. Contactservice technician. -- --
f. The power relay isfaulty. f. Contacts ervicetechnician. -- --
g. The power switch is faulty. g. Contactservice technician. -- --
2. The unit is on, but the
blower, carousel and
heaters will not operate.
a. The door interlock switch is
faulty.
a. Contact service technician. -- --
b. The power switch is faulty. b. Contactservice technician. -- --
c. The power relay is faulty. c. Contactservice technician. -- --
d. The hi-limit sw itch is faulty. d. Contact service technician. -- --
3. The unit is on, but will not
heat.
a. The temperature dial is not set
properly.
a. Adjust the temperature dialto
the desiredsetting.
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b. The thermostat is faulty. b. Contact service technician. -- --
c. The heater element is faulty. c. Contactservice technician. -- --
d. The high limit switch is open. d. Contactservice technician. -- --
4. The unit is on, but the
carousel does not turn.
a. The carousel drive is loose on
the gear motor shaft.
a. Properly install the carousel
drive.
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b. The gear motor is faulty. b. Contact service technician. -- --
c. The carousel is not installed
properly.
c. Install carousel according to
“Set-Up”procedures.
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d. The carousel is damaged. d. Contact a service technician
to replacethe carousel.
-- --
5. The unit is on, but the
blower motor does not
operate.
a. The blower is loose on the
motor shaft.
a. Contact service technician. -- --
b. The blower motor is faulty. b. Contacta service technician
to replacethe blower motor.
-- --