Pentair MasterTemp/Max-E-Therm Thermal Regulator Kit (77707-0010) littlegiant or non-responsive buttons

or non-responsive buttons

This type of part is especially useful during heater or control-system maintenance where the existing flow switch has failed and the replacement needs to remain aligned with the original equipment family

Part number 3010 provides a reliable reference for service matching

and part number 18044

A weir door like this is useful because it restores the moving skimmer entry door that helps regulate surface flow into the skimmer body

Pentair MasterTemp/Max-E-Therm Thermal Regulator Kit (77707-0010) littlegiant or non-responsive buttonsFor service work on Pentair pool equipment, choosing the exact replacement part helps reduce callbacks and installation delays. This MasterTemp and Max E Therm Thermal Regulator Kit is regulates internal heater water temperature flow behavior to help protect the heat exchanger and maintain proper heater operation. When this component sticks, weakens, or fails, symptoms can include overheating, cycling, reduced efficiency, or temperature related