140249390018 Genuine Oven Selector Switch MF8 for Westinghouse Aspire+ Ovens, Replacement Oven Function Switch

Part 140249390018 is the genuine MF8 selector switch for ovens in the Aspire+ range, used on Westinghouse cooking appliances. It sits behind the function knob and connects the elements, fan and light for each cooking mode you choose. Aspire+ ovens use more than one selector switch, including a multi 7 version under another number, so match 140249390018 to the number on your old switch before ordering.

Oven not heating on some functions? Check the selector switch

Each time you turn the function knob, the selector switch closes a set of contacts that power the right combination of elements, fan and oven light. When those contacts burn or wear, some functions stop working while others are fine, the oven may heat on the wrong element, or nothing happens at all. A knob that feels loose, crunchy or turns without clicking into position is another sign. Burnt or melted terminals on the back of the switch confirm it. Test the elements before replacing the switch, as a failed element can look like a switch fault.

Part details

• Genuine Electrolux group oven selector switch
• Part number 140249390018
• MF8 type
• Aspire+ oven range

Fitting the selector switch

Built-in ovens are normally hard-wired, so isolate the oven at the circuit breaker and work on it only when it's cool. Remove the knob and control panel, then label or photograph every wire on the old switch before disconnecting it. Move each wire to the same terminal on the new switch. This is mains wiring work, so use a licensed electrician if you're not qualified.

Questions about this part

How do I know if my oven uses the MF8 switch?

Look for a part number or MF8 marking on the old switch once the control panel is off, or send us your oven's model and product number from the rating label. Because Aspire+ ovens use more than one selector switch, the number is the safest check.