Poseidon Se7en Error Checker
A pre-dive test fails, usually at the least convenient moment, and the manual is at home. Pick the test and the code the handset showed, and this tells you what it means and what to check, in the order worth checking.
What it does
- Every test and code in Poseidon’s troubleshooting tables for the MkVI, Se7en and Se7en+ — pick the test your unit stopped on, then the code it showed.
- Says what the code means in Poseidon’s own words, then lists what to check, in the order worth trying.
- Shows which units run each test, and which codes each can report.
- Names the manual and page behind every test, and flags every place it departs from Poseidon’s documents — and why.
- Works offline once opened — add it to your home screen before the trip, because there is no signal on the boat.
- No account, no cookies, no tracking.
Still to come
- A record of the codes your own units have thrown, so a pattern is visible — this one needs you to sign in.
- Native apps for iPhone, iPad and Android.
Independent, and not a substitute for the manufacturer.
This is an unofficial reference built by divers. It is
not affiliated with, endorsed by, or supported by Poseidon Diving
Systems, and “Poseidon” and “Se7en” are their
trademarks, used here only to say what the tool is for. The official
documentation and a qualified service technician remain the authority on
your unit — always.
Where it is up to
- On your phone
- Se7enCodes — the name a home screen has room for
- Web application
- Live at webappstoolbox.com/se7en, and works offline once opened.
- iOS & iPadOS
- Planned. One universal app covering both.
- Android
- Planned.
- Sign in
- Not needed. Apple, Google or Microsoft only once unit history arrives, and only for that.
- Price
- Free now, and always will be.
Seen something we don’t cover?
Real codes, with what they turned out to be, are worth more than any amount of theory. Tell us the ones your unit has thrown, and what fixed them.