My IC40 is about a year old and is now displaying a continuous Red PWR light. When I first power the unit on, the PWR light is green, but after the two minutes of cycling through the salt reading LEDs, the PWR light switches to red (when the salt level LEDs stabilize). I performed another acid wash at Pentair's recommendation (did it 3 wks ago) and everything inside looks clean and no obstructions, but still have the red PWR LED. The only other abnormality is that the green salt level LED is flashing (>4200) ... another long story, but we are struggling with the varying and inaccurate salt level readings others on troublefreepool.com are experiencing. I called Pentair back and I was told not to worry about the red PWR led and that it only means that that the water temperature and salt level are mismatched (?). But, I am concerned by the statement in the manual that speaks to the Red Pwr LED condition "The IECG is OFF and an error is occurring in the IECG. Service is needed".
Life is green, Cell is green, Flow is green, Sanitizer Output is at 20%. PH is 7.6.
By the way, the High Salt readings just started and I haven't added salt for a few weeks. Not sure how the IC40 measures salinity.
Thanks in advance for any advice.