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Troubleshooting Guide 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. Close the oven door. -- --
d. The main power supply is off. d. Check the fuse box. -- --
e. The door switch is faulty. e. Contact service technician. -- --
f. The power relay is faulty. f. Contact service technician. -- --
g. The power switch is faulty. g. Contact service 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. Contact service technician. -- --
c. The power relay is faulty. c. Contact service technician. -- --
d. The hi-limit switch 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 dial to
the desired setting.
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b. The thermostat is faulty. b. Contact service technician. -- --
c. The heater element is faulty. c. Contact service technician. -- --
d. The high limit switch is open. d. Contact service technician. -- --
4. The unit is on, but the
carousel does not turn.
a. The carousel drive is loose on
the gear motor s haft.
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 replace the 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. Contact a service technician
to replace the blower motor.
-- --