Holland49424

Hello; I hate to reactivate this old thread but was hoping some of your could help I have a 2008 Watkins/Hot springs tub Red/green light were blinking when waterfall was turned on. Turn off waterfall: no more blinking/alls good. Spa tech said circ pump is dying, replace it in the fall. Couple of weeks of good use go by, then I get the blinking/red green again. I buy an original E5 pump from Hot Springs dealer, I replace it, I still have the blinking red/green. Service department is somewhat stumped when I call them ( I have a service call planned but not for 2 weeks!) They say it could be.. - calcium build up - thermistor replacement (but I have bubbles coming up, everything else working?) Or something else? Any ideas out there? Thanks