Pentair
Pentair MasterTemp/Sta-Rite Pool Heater Thermistor
Ensure your pool or spa stays at the perfect temperature with the Pentair Thermistor 42001-0053S. This genuine OEM replacement part is crucial for accurate temperature sensing and reliable heater operation. Designed for seamless integration, it is compatible with Pentair MasterTemp, ETi, and Sta-Rite Max-E-Therm heater models. Trust this essential component to maintain consistent warmth and enhance your swimming experience, providing peace of mind and efficient performance for your pool heating system.
$75.00
Owner Satisfaction
4.1
/ 5
Category Rank
480
/ 677
#480 in Pool Heaters
Price vs Category Average
-94%
Below average
Manufacturer Part Number
420010053
/ -S
Who it's for
- OEM Precision
- Simple Maintenance
- Cost-Effective Repair
Who should skip it
- Susceptible to Failure
- Diagnostic Complexity
- Proprietary Design
Key Specs
Manufacturer Part Number
42001-0053S
Item #
42001-0053S
Heater Type
Gas
Pool Type Compatibility
In Ground
Compatibility
Pentair MasterTemp, ETi, and Sta-Rite Max-E-Therm heaters
Features
- OEM direct replacement part
- Ensures accurate temperature sensing
- Compatible with MasterTemp series
- Compatible with ETi series heaters
- Compatible with Max-E-Therm heaters
- Essential for heater functionality
- Reliable performance
What customers say
This genuine Pentair thermistor is highly valued as an inexpensive, straightforward DIY fix that immediately resolves common heater error codes like E05 or E01. Users report significant satisfaction because this direct replacement restores full pool heater functionality quickly, often in under fifteen minutes, successfully avoiding expensive service calls. The part fits perfectly and provides accurate temperature readings right away. While the initial performance and ease of installation are excellent, some users express concern over long term durability, noting the sensor sometimes requires replacement within a few seasons. Despite these longevity worries, it remains the most reliable option for maintaining the MasterTemp system.
Still have a question?
Ask Hayley anything about this product before you decide.