Se7en Error Checker

Trademarks and source

“Poseidon” and “Se7en” are trademarks of Poseidon Diving Systems, used here only to say what this tool is for. This application is not endorsed by or supported by Poseidon — https://www.poseidon.com/contact

Everything here is transcribed from Poseidon’s own published documents — see where this data comes from. Codes are additive across models, so this covers MkVI, Se7en and Se7en+ — an older unit simply cannot report some of the codes listed here.