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Now it is showing ERR CODE THEN FLASHES 888 AND THE POWER LIGHT GOES OFF(OR SHOULD I SAY DIMS SO LOW THAT YOU CAN'T SEE IT) BUT THE PRESS SW LIGHT IS STILL ON WHERE THE LED LIGHTS ARE.

YES IT DOES.

I have a mini max nt (model 400) heater . About a month ago the pool guy cleaned our filters in the pool. After this we started getting a read on our control board that said "err" then it would flash 888. The heater worked for a while in the morning when it was cool but would then turn off. then...