


High Limit Switch for Pentair MasterTemp & Max-E-Therm Pool Heaters | 42001-0063S | SW-41-063
Marsoni
M251S
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Friday, May 29
High Limit Switch for Pentair MasterTemp & Max-E-Therm Pool Heaters | 42001-0063S | SW-41-063The Swimables Hi Limit Switch SW 41 063 is a vital safety device that monitors water temperature and automatically shuts down the heat exchanger the moment readings climb above the safe threshold of 135F. A failed high limit switch typically triggers an HLS error code on your heater's display, signaling that immediate replacement is needed. Because this switch is a one time use safety component, it cannot be reset and must be swapped out with a new
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