美国采购需求：blptcp，替换单元

I recently opened my pool and noticed that the Flow/System off light is lit up. The water flow seems fine and I've checked that the cell is clean. I'm trying to troubleshoot here—could it be that the flow indicator switch has failed, or does it indicate a need for a replacement of the entire cell? I purchased the unit about 3-5 years ago, and I'm considering my options for repair or replacement. Could you please provide me with the pricing for a new cell? Any additional insights on what might be causing the issue would also be appreciated. Thank you!