Brother mark 3 DB2-B755-3A operating owner manual.

Question edited for clarity. A DB2 is a car made by Aston Martin, but this appears to be a sewing machine. All question need 'make model (what it is)' as first 3 words please.
Question moved from Computers category to Brother Sewing.

This is the only resource I can find for Brother Error 03

E03 Cause
This message is displayed when the buttonhole lever is up, a buttonhole stitch is selected, and a button, such as the "Start/Stop" button, is pressed.
Solution
Lower the buttonhole lever before continuing the operation.
https://www.google.com/search?q=Brother+DB2-B755-3A+mark+111+error+code+03

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https://www.usermanuals.tech/d/brother-db2-b714-3-instruction-manual

You don't have to register an account to look at the complete manual, only if you want to download a copy.

Be sure to scroll down to "Veiw all the pages" if you don't see the options. Scroll further for "START READING BROTHER...." for single pages.

contact these sites and see if they can help you

brother sewing machine customer service

sewvacdoctor.com

A1sewingmachine.com

Brother has manuals for most of their equipment on their support page. The DB2-B736 manuals are here: http://www.brother-usa.com/support/ModelInfo.aspx?R3ModelID=B736%20%20003#.U211q2SFr3g . The direct link to the user's manual is http://www.brother-usa.com/VirData/Content/en-US%5CIPD%5CConsumer%5CInstructionManual%5CIM_DB2_B736_EN_7235.PDF .
I hope this helps.

Cindy Wells

you can asked only the manual of your machine, to the store of brother sewing machine.

Go to brother.com . From there you will need to enter the model number and serial number to get the file for free good luck

You can contact Brother USA or Canada for a manual on that machine.

You can try clicking on the support link but it might require you to send them an email instead.

Aside from that you might cross your finger with a few searches on the internet for a digital download.

Manual here........


http://myweb.tiscali.co.uk/stitches/BROTHER-DB2-B755-MKIII-MANUAL.pdf

I have the manual in pdf form here

http://myweb.tiscali.co.uk/stitches/BROTHER-DB2-B755-MKIII-MANUAL.pdf