Error 99 - Canon EOS 400D Digital Camera

Installation and manual

https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk03R1JPCSkCTC-P6JQvO6slO_7IZXQ%3A1615080305447&ei=cStEYMHhGo2ztQa9mqGIDg&q=primus+16kg+washing+machine+manual

Error 99
https://aventus-group.co.uk/help-advice/primus-error-codes/

Fault Code Fault 99 DOOR CAN NOT BE OPENED AS THE SAFETY CONDITIONS ARE NOT FULFILLED

This fusible link may be open. Try jumpering the two leads and see if the unit operates. If it does replace the fusible link. Do not operate the unit without the fusible link for an extended period. It is a safety device and is there for a reason. Hope this helps.

Error 99 is common error on Canon cameras. Make sure the battery is freshly charged. Take the battery out, the compact flash card out, and the attached lens off of the camera. Leave the camera set for a while for the capacitors to bleed off. Around a half hour would be good. Next re-insert the battery and push the shutter button as if you were taking a picture. If you get an Error 99 then, you can't fix the trouble and Canon will have to do it. If you do not get an error 99, power the camera off, insert the compact flash card, power the camera back on and press the shutter button again. If you get an Error 99, the trouble is in the compact flash card or its connector. Try a different card. If you do not get an Error 99, power the camera off, a lens on it, power the camera back up, then press the shutter button once again. If you do not see an Error 99, the problem is no longer in the camera. If you do see an Error 99, power the camera off and remove the lens. The problem is probably in the contacts on the camera or the lens. Clean the contacts by holding the camera carefully with the lens opening down so it will not allow dirt to get inside the camera. Take a cotton swab dipped in alcohol and clean the gold metal contacts well, Dry the contacts with a tissue. Next hold the lens with the contacts down and repeat the process on the contacts on the lens. Be very cautious not to allow lint, dust, or alcohol to get into the camera body or into the lens. Some people use a pencil eraser to clean the contacts but you have be very careful not to let particles enter the camera or lens. This should clear your trouble, if the camera passed the first step of troubleshooting.

Which model. What does it do when you get the ERR 99 message? Does the mirror go up? Does the shutter open and close? Does an image then show the image?

There are over 40 different malfunctions that can cause an error 99 on a Canon 40D. The 2 that account for over 95% of the error 99's are either a bad shutter mechanism or a bad mirror driving motor. It takes special diagnostic software to determine the exact cause. Otherwise, a repairer just has to start replacing parts until the problem goes away.
Bob Kilbourn www.camerarepairs.com

I have read quite a lot about this infamous Error 99 on the Internet. Rather than try to summarise or duplicate the information here, I'm going to point you to someone who's already done just that, from bitter experience, I think! There's a very comprehensive essay about the various possible causes of Error 99 here (follow link).

error 99 means flash is stuck . pop the flash and when it clicks, you have to smack the side of the camera to make it pop open

Go to the www.canon.com website and find out what Error 99 means. ted10

if you have a DSLR and your'e getting this "error 99" it may be associated with the particular lens youre using. try turning off the camera and removing the battery, the lens, and the memory card. let it sit for half an hour. reinsert the battery only and depress the shutter button as if you were to take a normal picture. if error 99 occurs again, then the camera needs servicing. if it error 99 doesn't occur at this point, turn the camera off and install the memory card. format the memory card while it's in the camera and press the shutter button as if youw ere to take a normal picture again. if you see error 99, then the problem probably lies with the memory card. if it doesn't occur, turn off the camera and install the lens. again, power on the camera and press the shutter as if you are taking a normal picture. if the error occurs, then it's with the lens. try to clean the lens including the connection points both on the camera and the lens. if the error code still occurs, try different lens to narrow it down to which particular lens is giving the issue. if it happends with all the lens, then the camera needs to be serviced.

Error 99 is a general fatal error.
which includes the problems above mentioned by Q4SteveB but also many others.

It can be caused by a dicky shutter, problems with the CF card interface.

If cleaning and trying a different lens has not worked. Not definitive but as a rule of thumb...
If it letting you take one picture then giving error 99.. and the picture is saved to the card (but may just be black) this is most likely the shutter needs replacing..

If it takes a picture and gives error 99 but there is no picture on the card or the picture is 0KB its a CF interface problem.

If you get an error 99 when you plug in the USB its a USB interface error, you can try a different cable but unfortunately in most cases if another lens or cable wont work it needs repair