美国采购需求：盐氯发生器系统、游泳池设备、盐氯发生器、盐氯发生器电解槽更换、盐水系统部件、泳池灯

I have a salt cell and its associated electrical unit that we purchased around 4 to 5 years ago. Recently, the system has been indicating a “hot” warning, which has persisted since the end of last year. I'm curious about the implications of this issue and what steps we should take to resolve it. Can you provide some insights into what the "hot" message could signify? Any advice on troubleshooting or necessary maintenance procedures would be greatly appreciated. Looking forward to your guidance on this matter!