My Aquacheck strips read 3600ppm salt, the goldline unit reads 1900ppm salt.
Flow control is solid red, the starts blinking. Can't figure out why, but sometimes the flow control flashes, then goes out - when this happens, get the "inspect cell" and "low salinity" LEDs. Then the flow control goes red again.
Removed and inspected cell - looks almost new (no gunk) and well cared for. Decided to give it a mild acid wash anyway - no bubbles.
Also pulled flow sensor (is this NO or NC), and it _looked_ OK...
Don't have the volt or amp readings in front of me...
Called Goldline - they said either the cell or the control board is going out. I guess with precision troubleshooting like that, they should become weathermen!