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Noise Filter
The noise fi lter helps to suppress electromagnetic
interference (EMI) radiating from the operation of
the oven and also protects the oven from any line
noise. The noise fi lter is located on the right side of
the oven behind the control panel and in front of
the circulation blower assembly. The noise fi lter is
held in place by a single Phillips-head screw. The
fi lter ground wire is attached to the low voltage
transformer (#2) right-side Phillips-head screw. The
outer cover must be removed to access the noise
fi lter. (See Oven Removal / Partial Removal.)
Note: When installing the noise fi lter, ensure all fi lter
wiring is connected to the correct terminals.
Check to make sure the fuse is not open. Check the
noise fi lter for approximate resistance value at the
following locations:
White (neutral input) to white/blue (neutral output) -
0 Ω.
Red (line input) to black (line output) - 0 Ω.
White (neutral input) to red (line input) - 23 Ω.
Top View of Noise Filter
(W ires Removed from Relays for Clarity)
Screw
Ground Wire Screw
Noise Filter
Noise Filter Fuse
Important Note: The primary interlock, monitor
interlock, door sensing (secondary interlock)
switches, and the relay board must all be replaced
when the 20 amp fuse opens due to operation of the
monitor interlock switch.
The unit is equipped with a 20-amp fuse (Part #
WB27X10388).
The fuse is located in a receptacle near the top of
the noise fi lter and is common to all functions and
door switches.
Note: If the fuse opens, it will disable all oven
functions including the display. The oven must be
partially removed to access the fuse. (See Oven
Removal / Partial Removal.)
Fuse
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