I have a Pentair MiniMax pool heater. it's fairly new (5 years or under) and been working well, but I just noticed that the temp. reads "high", which according to the manual means that the pool is above 104 degrees, which the pool is no where close to, I've turned the whole thing on and off, powered it down and back on, still reads "high". and because it reads "high" it won't turn any heat on. Any suggestions?
thanks,
Lloyd