Replacement For Pentair® Minimax® NT Hi Limit Switch 115° by Optimum Pool Technologies

Optimum Pool TechnologiesSKU: HLS-P-MMXNT-115



This aftermarket replacement for the Pentair® 471587 High Limit Switch is an important switch in your MiniMax® NT pool heater, and is used to detect when your water temperature has exceeded a safe level (115°F).

Your MiniMax® NT heater will indicate when it is time to replace the High Limit Switch when the “SERVICE” LED is displayed. It also may be time to replace your MiniMax® NT High Limit Switch if all 3 lights on the back of the control board are on and one or both of the switches shows an open circuit (given proper water flow through the heater).


  • Compatibility: Fits MiniMax® CH, NT STD with 6800, ST STD with DDTC, LN with 6800, LN with DDTC, TSI with 6800 and TSI with DDTC Heaters
  • Replaces: 471587
Statements of compatibility here are 100% guaranteed by Pool Guy Supply, Inc. and are not attributable to or made by Hayward® or any other original equipment manufacturer (OEM) of products sold on this website.

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