Always start with Visual and Mechanical Inspection
Is there enough water in the system?
The Electrolyzer overheats?
No bubbles? Or too many bubbles?
Fuse(s) blown? Or fuses keeps blowing?
Is there good vacuum connection?
No HHO production?
Good power source?
Computer, sensors issues?
Mileage didn’t improve?
How can a Multi-Cell system help mileage?