14,000 Galloon pool, 1.5 year old PoolPilot Digital Nano SWG seems to not be producing Cl. CYA at 70, FC and TAC both 0. Been doing Liquid Cl for a few weeks getting the rest of the chem to optimal ranges before I chalk it to a dead cell. Volts at 3, amps at 5.2. Salt level 3200. All seems...