Question about Pentair Minimax NT Heater
This could be high limits but more than likely this is a water flow problem. Check to be sure your by-pass is closed or nearly closed. If this is good then you need to remove the water manifold from the side of the heater. Inside you will find another by-pass assembly and you will need to replace this.
Before doing this you can take the wires from the limit switches one at a time and use a jumper wire to by-pass them. This won't tell you if they are bad though just if they are kicking off. If the water in the heater is that hot they are just doing their job.
Sort of a catch 22 but the best I can do from here. Hope this helps, good luck.
Posted on Oct 11, 2010
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Posted on Jan 02, 2017
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