Hello, I have a pool that is nearly 22 months old. The control panel for the Jandy TruClear 11P is reading "CHECK CELL" on the display. I've cleaned it 3 times over the time I've had it. There is no build up on the cell plates. Wondering if anyone has any troubleshooting tips, or if I should open up the panel to see if there is any thing to check inside or a way to reset it. There is no chlorine in the water currently. Question: Will no chlorine in the pool for a while cause the SWG cell to fail?