Response to Hi Glenn, The circuit limiter is definitely a weak point on these boards. We have found that the circuit limiter can be repaired or replaced a few times but after a few repairs then the main pcb board will need to be replaced. I would suggest replacing the main board first as many times this will fix the issue with the dim display board. If the dimness doesnt improve at that point then you will need both boards. For the SwimPure Plus you will need this Swimpure Plus Main PCB Board and this Swimpure Plus Display Board.

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