B
brianjonesAug 25, 2025
How to fix « #error (+)(-) » error on GYS GYSFLASH 102.12 HF Battery Charger?
- KKelly LongAug 25, 2025
If your GYS Battery Charger screen is flashing « #error (+)(-) » and beeping, it indicates that the polarity of the clamps has been reversed. To fix this, connect the red clamp to the (+) terminal and the black clamp to the (-) terminal of the battery.