– 36 –8. Check resistance between Noise Filter line in andline out, and Noise Filter neutral in and neutralout.• If both resistance readings areapproximately 0 Ω, problem is with housesupply voltage or the power cord.• If either resistance reading is infinite, checkboth Noise Filter Fuses. If both fuses are OK,replace the Noise Filter.DisassemblyTo remove the Noise Filter:1. Disconnect power to the oven.2. Remove the Outer Cover.(See Outer Cover.)3. Disconnect the input wire harness, line output,and neutral output wires.4. Remove the Phillips-head screw that attachesthe filter ground wire.5. Remove the 2 Phillips-head screws holding theNoise Filter in place.Output-NOutput-LFuseFuseInput WireHarnessFilter Ground Wire ScrewUpper Heaters' TCO (Thermal Cut Out)• Location - Attached to the Upper HeaterAssembly. (See Top View.)• Safety thermostat that interrupts power toboth upper heaters in the event of excessivetemperatures.• Normally closed.• Opens at 320°F, non-resettable.• Disassembly. (See Disassembly.)DisassemblyTo remove the Upper Heaters' TCO:1. Remove the Air Tunnel Cover. (See Air TunnelCover.)2. Remove the 3 Phillips-head screws that attachthe Air Tunnel Outlet to the oven. (See Air TunnelOutlet.)3. Lift and position the Air Tunnel Outlet to theright.4. Disconnect the 2 wires from the TCO.5. Remove the Phillips-head screw that attachesthe TCO to the TCO bracket.TCO BracketTCODisconnectDisconnect