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Pentair | 42001-0053S | MasterTemp and Max-E-Therm Heater Thermistor

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Pentair | 42001-0053S | MasterTemp and Max-E-Therm Heater Thermistor

The Pentair 42001-0053S Thermistor is a replacement temperature sensing component designed for compatible Pentair MasterTemp and Sta-Rite Max-E-Therm pool and spa heaters. This part helps monitor water temperature within the heater system so the control board can respond accurately during operation, making it an important service item when temperature readings become inaccurate or heater performance becomes inconsistent.


Key Features

• Replacement thermistor is designed for use with compatible Pentair MasterTemp and Sta-Rite Max-E-Therm pool and spa heaters.
• This sensor helps monitor water temperature so the heater control system can regulate operation more accurately.
• Intended for maintenance and repair when the original thermistor produces inaccurate readings or no longer functions correctly.
• OEM replacement design helps maintain fit and function within the original heater electrical and sensing system.
• Proper thermistor operation is important to dependable heater response, temperature display accuracy, and normal heating performance.
• This part is commonly referenced as a stainless steel thermistor used in compatible heater sensor applications.
• Targeted replacement format allows service of the temperature sensing circuit without replacing larger heater assemblies.
• Durable construction is suited for routine pool and spa heater maintenance in outdoor equipment environments.


Product Overview

The Pentair 42001-0053S Thermistor is a service replacement part used in the temperature sensing system of compatible MasterTemp and Max-E-Therm heaters. Its primary role is to provide temperature feedback to the heater control system so the unit can operate according to the selected set point and respond correctly during normal heating cycles. Because the heater depends on accurate sensor input, a worn or failing thermistor can lead to incorrect display temperatures, inconsistent operation, or reduced heating reliability.

This part is well suited for service situations where the heater remains otherwise functional but the temperature sensing component needs replacement. It offers a focused repair option that helps restore accurate system feedback without replacing larger control or water system assemblies. For pool owners and service professionals maintaining compatible Pentair and Sta-Rite heater platforms, the 42001-0053S thermistor fills an important role in ongoing heater diagnostics, repair, and performance upkeep.

$24.50

Original: $69.99

-65%
Pentair | 42001-0053S | MasterTemp and Max-E-Therm Heater Thermistor

$69.99

$24.50

Product Information

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Description

The Pentair 42001-0053S Thermistor is a replacement temperature sensing component designed for compatible Pentair MasterTemp and Sta-Rite Max-E-Therm pool and spa heaters. This part helps monitor water temperature within the heater system so the control board can respond accurately during operation, making it an important service item when temperature readings become inaccurate or heater performance becomes inconsistent.


Key Features

• Replacement thermistor is designed for use with compatible Pentair MasterTemp and Sta-Rite Max-E-Therm pool and spa heaters.
• This sensor helps monitor water temperature so the heater control system can regulate operation more accurately.
• Intended for maintenance and repair when the original thermistor produces inaccurate readings or no longer functions correctly.
• OEM replacement design helps maintain fit and function within the original heater electrical and sensing system.
• Proper thermistor operation is important to dependable heater response, temperature display accuracy, and normal heating performance.
• This part is commonly referenced as a stainless steel thermistor used in compatible heater sensor applications.
• Targeted replacement format allows service of the temperature sensing circuit without replacing larger heater assemblies.
• Durable construction is suited for routine pool and spa heater maintenance in outdoor equipment environments.


Product Overview

The Pentair 42001-0053S Thermistor is a service replacement part used in the temperature sensing system of compatible MasterTemp and Max-E-Therm heaters. Its primary role is to provide temperature feedback to the heater control system so the unit can operate according to the selected set point and respond correctly during normal heating cycles. Because the heater depends on accurate sensor input, a worn or failing thermistor can lead to incorrect display temperatures, inconsistent operation, or reduced heating reliability.

This part is well suited for service situations where the heater remains otherwise functional but the temperature sensing component needs replacement. It offers a focused repair option that helps restore accurate system feedback without replacing larger control or water system assemblies. For pool owners and service professionals maintaining compatible Pentair and Sta-Rite heater platforms, the 42001-0053S thermistor fills an important role in ongoing heater diagnostics, repair, and performance upkeep.