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Item #:
792134
Pentair 42001-0063S Electrical System High Limit Switch Replacement Pool and Spa Heater
89% of respondents would recommend this to a friend
Item #:
792134
XCD 133
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What Stands Out
High Limit Safety
This high limit switch ensures safe operation of your pool and spa heater by automatically shutting down the system in case of overheating, protecting both the appliance and users from potential hazards.
Easy Replacement
Designed for straightforward installation, this replacement switch simplifies maintenance, allowing users to quickly restore heater functionality without the need for professional assistance or extensive tools.
Quality Assurance
Manufactured by Pentair, this high limit switch guarantees reliability and performance, ensuring long-lasting functionality that meets or exceeds industry standards, providing peace of mind to pool and spa owners.
Product Details
| Contact Type | Normally Open |
| Switch Type | High Limit Switch |
| Terminal | Screw |
| Circuit Type | 1-way |
| Mounting Type | Panel Mount or Surface Mount |
| Control Method | Sensor |
| Control Type | safety |
| Compatible Devices | Pentair Sta-Rite Max-E-Therm, MasterTemp pool and spa heaters |
| Color | Black |
| Item Dimensions | 3 x 3 x 0.7 inches (7.6 x 7.6 x 1.8 cm) |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Material Type | Metal |
| Contact Material | Metal |
| Brand Name | Pentair |
| Model | 42001-0063S |
| Global Trade Identification Number | 00022315209831 |
| Manufacturer | Pentair |
| UPC | 022315209831 |
| Item Type Name | 42001-0063S |
| Part Number | 42001-0063S |
| Brand | Pentair |
| Material | Metal |
| Item dimensions L x W x H | 3 x 3 x 0.7 inches (7.6 x 7.6 x 1.8 cm) |
Who Should Buy?
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Pool Owners
Ideal for pool owners needing a reliable high limit switch for maintaining safe heater operation in their pools.
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Spa Enthusiasts
Spa users looking for efficient heating solutions will benefit from this high limit switch's reliability and performance.
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DIY Repairers
Homeowners comfortable with DIY repairs can easily install this switch to restore heater functionality without professional help.
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Inexperienced Users
Not suitable for those unfamiliar with electrical systems, as incorrect installation can cause further issues or hazards.
Product Description
Pentair 42001-0063S Electrical System High Limit Switch Replacement Pool and Spa Heater
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the Pentair 42001-0063S High Limit Switch?
Answer: The Pentair 42001-0063S High Limit Switch is a crucial safety component used in pool and spa heating systems. It monitors the temperature within the heater and automatically shuts off the system if temperatures exceed a safe limit. This helps prevent overheating and potential damage to the heating unit, ensuring consistent performance while maintaining safety standards. -
Question:
How do I know if my High Limit Switch needs to be replaced?
Answer: Signs that your High Limit Switch may need replacement include inconsistent heating, frequent system shutdowns, or error codes related to overheating. If your heater is not functioning as expected, it's essential to check this switch first, as it's a common point of failure. Regular maintenance checks can also help identify issues before they escalate. -
Question:
Can I replace the Pentair High Limit Switch myself?
Answer: Yes, replacing the Pentair 42001-0063S can be a straightforward DIY task if you have basic electrical knowledge. Firstly, ensure the system is powered off for safety. Then, locate the switch in the heater and follow your heater's service manual for proper removal and installation procedures. However, if you're unsure, consulting a professional is advisable. -
Question:
What tools do I need to replace the High Limit Switch?
Answer: To replace the Pentair High Limit Switch, you typically need a screwdriver (flat or Phillips depending on screws), pliers, and potentially a multimeter for testing continuity. Having a flashlight can also be helpful in spotting the part inside the heater. Ensuring you have the right tools handy makes the process smoother and more efficient. -
Question:
Are there any safety precautions to take when replacing the switch?
Answer: Absolutely, safety should be your top priority. Always disconnect the power supply to the pool heater before beginning any work. Use insulated tools wherever possible and consider wearing gloves to avoid electrical shocks. Ensure the area is dry and clear of any water. Following these precautions will help keep you safe during the replacement process. -
Question:
Where can I find the specifications for the Pentair 42001-0063S?
Answer: Specifications for the Pentair 42001-0063S High Limit Switch can typically be found in the product manual that comes with your pool heater or on the manufacturer's official website. These specifications include details about operational limits and installation guidelines, which can help you ensure compatibility with your existing equipment. -
Question:
What role does a High Limit Switch play in my pool heater's performance?
Answer: The High Limit Switch plays a vital role in pool heater performance by ensuring that the heater does not exceed safe operating temperatures. If the switch detects high temperatures, it interrupts power to the heater, preventing overheating and potential damage to the system. This function helps maintain a consistent heating cycle and enhances the longevity of the heater. -
Question:
Is the Pentair 42001-0063S compatible with all pool heater models?
Answer: The Pentair 42001-0063S is designed for compatibility with specific Pentair pool heater models. It is essential to verify compatibility before purchase to ensure proper function and integration with your existing system. Check your heater's model information and consult the product documentation or a qualified technician for guidance on compatibility. -
Question:
What types of heaters use the Pentair 42001-0063S switch?
Answer: The Pentair 42001-0063S High Limit Switch is commonly used in various types of Pentair pool and spa heaters, including gas and electric models. It serves as a safety measure across many of their heating systems, making it a versatile component within Pentair's range of products, contributing to the reliability and efficiency of the heating system. -
Question:
Where can I buy Pentair 42001-0063S High Limit Switch Replacement Part in Grenada?
Answer: You can purchase the Pentair 42001-0063S High Limit Switch Replacement Part through Ubuy. Ubuy offers a variety of options and is a trusted online retailer where you can find this specific replacement part to ensure your pool heating system operates safely and efficiently.
Pentair Pool Heater & Heat Pump Parts Editorial Review
The Pentair 42001-0063S High Limit Switch Replacement Part is a great product for replacing the High Limit Switch on a Pentair MasterTemp 400 pool heater. Despite the confusion with the sizing, it was confirmed by Pentair that the part number has not changed and the inner thread diameter is what matters. The installation process is easy and only takes about 10 minutes. Customers have reported that this replacement part fixed their heating issue and saved them a pool repair call and money.
Customer Reviews & Ratings
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Pros
- Easy to install
- Fixed heating issue
- Saves money on pool repair
Cons
- Confusion with sizing
Platform Trust & Buyer Confidence
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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8 September 2026 · via Trustpilot
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Important information
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Features & Benefits
- Authentic Pentair replacement part
- Designed with high-limit switch functionality
- Compatible with Sta-Rite Max-E-Therm models
- Also works for MasterTemp pool and spa heaters
- Easy replacement for DIY projects
- Ensures optimal performance and safety for your heater
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