Bosch 645446 Control Unit - AppliancePartsPros.com

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$0.00

Part Number:	AP4359679
MFG Part Number:	645446
Made by:	Bosch

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$145.68
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~~$173.36~~	$27.68

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Customer reports that unit start "sparking" all by it's self at varying times of the day and night but very intermitantly otherwise when being used works fine. Turing power to unit OFF then ON again solves the problem---untill the next time. Both potentiometers have been replaced and no spark switches are "shorted". It must be either the Control Module or the Spark Module--but which one? If I try what you suggest and that does not solve the problem can I return the part? Thanks, Mark

Mark for Model Number SGSX456

Answer Hello Mark. Check and make sure there is no moisture in the unit. If there is moisture there, it will cause the unit to spark like that. If there is no moisture there, you will need to replace the control unit 645446 on the unit. Also, make sure none of the switches are bad on the unit or have any moisture in them.

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Our sgsx304 (4 burner w/simmer on the two left burners) works fine except that once lit, the right rear sparker/ignighter sparks almost continuously. The right front ignihter sparks a lot when turned down. Is the controller the correct part to replace? Also, is this the correct controller for me cooktop? Thx.

Gra for Model Number sgsx304

Answer Hi Gra. Your spark switch that is on the burner valve shaft may be shorted. Its job is to send the voltage to the ignition module as you are calling for ignition. Part # 189008. You can also temporarily unhook one side of the sw. wires and tape it with elect. tape to test to see if this is the issue or possibly the control unit part # 645446. Thank You.

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My Griddle does not start all of the time. The Thermostat, and gas valve check out ok. Is there a schematic diagram of the electrical circuitry for this unit?

Mark G. for Model Number PDR364GDZS

Answer Hello Mark. If the control unit 645446 is bad, it can prevent the griddle from lighting. Hope this helps.

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Latest Questions

Will this control board fit my range and can I replace it myself? How is it done? Thank you!

John for Model Number PGR304ZS

Answer Hi John. There are 3-similar model #'s as yours. Please send us the complete model # so we can assist you further. Thank you.

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