My brother-project runway-CE-5000PRW is giving me an “F4” (flashing sign) and will not work. What is the problem? I don’t see it in the handbook.

Blind hem:

CE 5000 5000PRW United States Brother Solutions Center

Check the troubleshooting section of the manual for the particular error code.

Brother Sewing Machine Error Code F4 SewingMachinesPlus

https://help.brother-usa.com/app/answers/detail/a_id/126863/~/error-message-f4

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https://sewingmachinespoint.com/brother-pc420prw-review/

"Not working" isn't enough information. Please provide what you were doing, how the machine reacted... what are the symptoms?

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A Brother LS2300PRW.
Click link below:

you can take the sewing machine and foot pedal to a repair shop and have them check the foot pedal and they can tell you if you need a new foot pedal or if that one can be fixed.

what website are you trying to download it from?
and I'll try to help you with it

For a replacement Brother CE5000 User Manual take a look HERE

You must use an anti static needle or stretch stitch needle.