| PROBLEM | PROBABLE CAUSE | REMEDY |
| GFCI trips (on startup) | Improper or defective wiring. | Improper or defective wiring. |
| GFCI trips | A) Ozone generator defective. | Unplug from controller and reset breaker to verify problem. |
| B) Unknown cause. | Unplug components one at a time until breaker holds. | |
| System inoperative | A) System lockup. | Reset power source or GFCI. |
| B) Loss of power. | Reset breakers. Check fuses. Call for service. |
