KitchenAid KESC307H, KESH307H, KESC300H manual Component Testing, Bimetal Switch

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COMPONENT TESTING

Before testing any of the components, perform the following checks:

•The most common cause for control failure is corrosion on connectors. Therefore, discon- necting and reconnecting wires will be nec- essary throughout test procedures.

•All tests/checks should be made with a VOM or DVM having a sensitivity of 20,000 ohms- per-volt DC, or greater.

•Check all connections before replacing com- ponents, looking for broken or loose wires, failed terminals, or wires not pressed into connectors far enough.

•Resistance checks must be made with power cord unplugged from outlet, and with wiring harness or connectors disconnected.

WARNING

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before operating.

Failure to do so can result in death or electrical shock.

BIMETAL SWITCH

Refer to page 4-2 for the procedure for servic- ing a bimetal switch.

1.Unplug range or disconnect power.

2.Set the ohmmeter to the R x 1 scale.

3.For the ambient bimetal switch (N.C.), touch the ohmmeter test leads to the ter-

minals. The meter should indicate conti- nuity (0 Ω).

4.For the cooling fan bimetal switch (N.O.), touch the ohmmeter test leads to the terminals. The meter should indicate an open circuit (infinite).

Ambient Bimetal Switch (N.C.)

Opens @ 96°C (205°F)

Resets @ 74°C (165°F)

Cooling Fan Bimetal Switch (N.O.)

Resets @ 70°C (158°F)

Closes @ 60°C (140°F)

5-1

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Contents SELF-CLEANING SLIDE-IN Electric Range Goals and Objectives ForwardTable of Contents Wiring Diagram & Strip Circuits General Safety FirstElectrostatic Discharge ESD Sensitive Electronics Serial Number Kitchenaid Model & Serial Number DesignationsModel Number Model & Serial Number Location Located Behind Storage Drawer Model & Serial Number Label LocationKESC300H WH/BL/BT KESC307H WH/BT/BS KESH307H WH/BL/BS SpecificationsInterior Limited Warranty Kitchenaid Electric Range WarrantyPage General Electrical Supply RequirementsElectrical Connections Not used for Canadian Installations Wire Electrical Connection Power Supply Cord ConnectionLine Direct Wire Connection Ground link Screw Line Moving the Range AIR Flow Rear Panel Theory of OperationAIR Inlets Under Control Panel Cooling FAN AIR FlowInset #1 Bimetal SwitchesInset #2 Surface Element Limiter Door Lock Solenoid Door Unlocked Door Lock Solenoid & Door Latch SwitchAfter 30 Minutes of Clean HOW the SELF-CLEAN Cycle WorksComponent Locations Component AccessTo remove the control panel To remove an infinite switchTo remove a bimetal switch To remove the electronic oven control Removing the Electronic Oven Control AN Indicator LightTo remove an indicator light On the next To remove an element and limiterTo remove the hot surface indicator assembly Removing the Cooktop Glass Lower the cooktop Lift Grate Off Cooktop Rear Trim Rear Trim Tension Brackets To remove the door latch assembly Removing the Door Latch Assembly Door SwitchTo remove the door switch To remove the hidden bake element Removing the Dual Broil Element Hidden Bake ElementTo remove the dual broil element Element Shield Screw Element Wires To remove the convection bake ele- ment Removing the Convection Bake Element & FAN MotorTo remove the convection fan motor Removing AN Oven Light Socket Assembly Removing the Meat Probe Jack Removing the Oven Temperature Sensor Removing a Side Panel To remove the cooling fan motor Removing the Double Line Break DLB Relay Cooling FAN MotorTo remove the double line break DLB relay Remove This Screw Loosen These Screws Housing Removing the Oven Door To reinstall the oven doorTo remove a hinge To remove the decorative glassTo remove the door handle To remove the inner and outer oven door glass Removing the Oven Door Gasket Page Bimetal Switch Component TestingSingle Element Infinite Switches Dual Element Infinite Switch Optional To test the left front LF dual element and limiter Surface Elements & LimitersTo test the RF, LR, & RR single ele- ments & limiters To test the door latch switch Door Switch N.ODual Broil Element Hidden Bake ElementConvection FAN Motor Convection Bake ElementCooling FAN Motor Oven Temperature SensorDouble Line Break DLB Relay Diagnosis Diagnosis & TroubleshootingFault Error F1E3 Fault Error Code ChartsProblem Possible Cause Solution Troubleshooting ChartsProblem Possible Cause Solution Problem Possible Cause Solution Oven Temperature Calibration Wiring Diagram #9753028, REV. B Wiring Diagram & Strip CircuitsPage Strip Circuits CleanBake Including PRE-HEAT Broil EconoConvection Broil Driving CircuitHalogen Oven Lights Optional Oven Light OptionalPage Product Specifications Warranty Information Sources