Have a salt water pool with Hayward Omnilogic controller. Yesterday for no apparent reason my system went into freeze protect on both the filter pump and water feature pump even though the air temperature was in the 60's. Tried power cycling the controller a couple of times to no effect. I turned off the water feature pump at the electric panel since I didn't want it running but left the filter pump on since I run it continuously anyway. This morning my air temperature and water temperature in the controller are both reading 78F currently, but the air temp is mid 60's and water temp is low 60's. Nothing seems wrong with the sensor wiring all nice and snug, no corrosion or visible breaks. Both had been working previously. Any hints as to what might be going on?