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Rear Cooling Fan
Testing/Troubleshooting
NOTE: The rear cooling fans are on when the temperature of
the oven chamber is above 140°F (60°C).
• Verify that supply voltage of 24 VDC is going into the fan. If
there is voltage and the fan is not running, replace the fan.
Replacement Procedure
1. Completely shut down and unplug the oven. Refer to the
"Shutdown" procedure in the OPERATION section.
2. Remove the top panel. Refer to the "Removing the Top
Panel" procedure in this section.
3. Disconnect the fan lead wires on both rear cooling fans
from the lever nuts.
4. Remove two (2) 1/4" hex screws that secure the rear fan
bracket assembly to the rear frame, and remove the rear
fan bracket assembly.
5. Remove the air filter.
6. Remove the four Philips-head fan mounting screws that
secure the finger guard and the fan to the rear fan bracket
assembly. Remove the finger guard and fan.
7. Install the new fan with the finger guard onto the rear fan
bracket assembly. Then, reinstall the rear fan bracket
assembly onto the rear frame by reversing the steps above.
Filter
Rear Fan
Bracket
Assembly
Philips
Screw
Philips
Screw
Finger Guard
OVMISAM-0522
Central Cooling Fan
Testing/Troubleshooting
NOTE: Central cooling fan is on only when magnetrons are on
• Verify that supply voltage of 24 VDC is going into the fan. If
Replacement Procedure
1. Completely shut down and unplug the oven. Refer to the
2. Remove the top panel and right side panel. Refer to the
3. Disconnect the fan lead wires from the lever nuts.
4. Remove the six Philips-head screws that secure the top
5. Carefully rotate up the top
6. While lifting up on the top support
7. Remove the two Philips-head screws that secure the central
8. Install the new central cooling fan onto the fan mounting
Rear
Cooling
Fan
Central
Cooling
27
SERVICE PROCEDURES
and for two minutes after magnetrons turn off.
there is voltage and the fan is not running, replace the fan.
"Shutdown" procedure in the OPERATION section.
appropriate procedures in this section.
support rail to the oven frame.
support rail and remove the two
(2) 1/4" hex nuts that secure the
central cooling fan mounting
bracket to the oven frame.
rail with one hand, guide the
central cooling fan and bracket
out of the right side of the unit
with the other hand.
cooling fan to the fan mounting bracket. Remove the fan.
bracket. Then, reinstall the fan into position on the oven
frame by reversing the steps above.
Philips
Screw
Fan
Hex Nut
Mounting Bracket
Hex Nuts
Top Support Rail
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