---
product_id: 76883216
title: "Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch"
brand: "wholesale sensors"
price: "₨10304"
currency: LKR
in_stock: true
reviews_count: 9
category: "Wholesale Sensors"
url: https://www.desertcart.lk/products/76883216-pentair-42001-0063s-replacement-high-limit-switch-12-month-warranty
store_origin: LK
region: Sri Lanka
---

# 135°F cut-off temp OEM precise fit easy install in minutes Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch

**Brand:** wholesale sensors
**Price:** ₨10304
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your pool heater cool, safe, and running like clockwork!

## Quick Answers

- **What is this?** Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch by wholesale sensors
- **How much does it cost?** ₨10304 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/76883216-pentair-42001-0063s-replacement-high-limit-switch-12-month-warranty)

## Best For

- wholesale sensors enthusiasts

## Why This Product

- Trusted wholesale sensors brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Corrosion-resistant brass construction designed to withstand harsh pool environments and humidity.
- • **Safety First, Always:** Prevents overheating with a precise 135°F cut-off to protect your pool heater and spa.
- • **DIY Friendly Installation:** Swap out your faulty switch in minutes—no specialized tools required, get back to relaxing faster.
- • **Seamless OEM Compatibility:** Direct replacement for Pentair MasterTemp & Max-E-Therm models, ensuring hassle-free integration.
- • **Confidence Backed by Warranty:** 12-month USA-backed warranty with dedicated customer support for peace of mind.

## Overview

The Pentair 42001-0063S Replacement High Limit Switch is a precision-engineered safety device designed to prevent overheating in Pentair pool and spa heaters. Compatible with MasterTemp and Max-E-Therm models, it features a 135°F cut-off temperature, durable corrosion-resistant brass construction, and easy installation. Backed by a 12-month warranty and USA-based support, it ensures reliable, long-lasting protection for your heating system.

## Description

Buy Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch: Pool Heater & Heat Pump Parts - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works exactly as described - Bought this item to repair a Pentair Mastertemp 400HD. Tried to use our pool heater for the first time this season and was met with disappointment. When our Easytouch called for heat, the heaters would light up, with the "service heater" light on. Heater would not attempt to light and blower motor dis not activate. I removed the top panel to read the service codes on the back of the main board and the HLS high limit sensor led light was lit. Ordered a more expensive sensor from another vendor on desertcart, because it said it was OEM. Turned out it was falsely advertised and was a non oem replacement like the one sold in this add. I returned, then purchased this non oem replacement and could not be happier. Cheaper price and it functions just like advertised.
Review: Good quality - Easy install and works as expected

## Features

- RELIABLE POOL & SPA HEATER PROTECTION – The Pentair Replacement High Limit Switch 42001-0063S is a crucial safety component that prevents overheating in your pool or spa heater. Designed for optimal temperature regulation, this high-limit switch ensures your heating system runs safely and efficiently. Its precision engineering helps extend the lifespan of your equipment, making it an essential replacement part for maintaining a well-functioning heating system.
- COMPLETE REPLACEMENT SWITCH WITH PRECISE COMPATIBILITY – This package includes one high-limit switch 42001-0063S, designed as a direct replacement for Pentair MasterTemp and Max-E-Therm heater models, including SR200, SR333, and SR400. Engineered for seamless integration, it matches OEM specifications for size and performance, ensuring a hassle-free replacement. The switch operates at a cut-off temperature of 135°F, safeguarding your heater from excessive heat damage.
- DURABLE & HIGH-QUALITY CONSTRUCTION – Manufactured with premium-grade materials, this high-limit switch is built to endure harsh pool and spa environments. Its corrosion-resistant design ensures longevity, even in high-humidity conditions. The internal sensor is engineered for precise thermal detection, providing consistent and reliable performance. This quality construction guarantees your pool or spa heater maintains a safe and steady operation for years to come.
- SIMPLE INSTALLATION FOR INSTANT USE – Designed for easy installation, this high-limit switch can be replaced quickly without the need for specialized tools. Just remove the faulty switch, secure the new one in place, and restore your heater’s safety function within minutes. Ideal for pool and spa owners looking for a straightforward solution, this switch enhances your heater’s reliability while preventing costly damage caused by overheating.
- TRUSTED USA MANUFACTURER WITH 12-MONTH WARRANTY – Backed by Wholesale Sensors, a reputable USA-based manufacturer, this high-limit switch is tested for accuracy and reliability. With a 12-month warranty included, you can be confident in the quality and durability of your purchase. Our dedicated customer support team is available to assist you, ensuring you receive a reliable product that meets or exceeds industry standards.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GCVHVFC |
| Best Sellers Rank | #46,083 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #26 in Swimming Pool Heater Parts |
| Brand | Wholesale Sensors |
| Circuit Type | 1-way |
| Color | Brass |
| Compatible Devices | Pentair MasterTemp, Pentair Max-E-Therm, Pentair SR200, Pentair SR333, Pentair SR400 |
| Connectivity Protocol | Wi-Fi |
| Connector Type | Male-to-female |
| Contact Material | Brass |
| Contact Type | Normally Open |
| Control Method | Touch |
| Control Type | Automatic |
| Current Rating | 15 Amps |
| Date First Available | August 11, 2018 |
| International Protection Rating | IP00 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.13 ounces |
| Item dimensions L x W x H | 2 x 1 x 2 inches |
| Item model number | 42001-0063S |
| Manufacturer | Wholesale Sensors |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 120 Volts (AC) |
| Operation Mode | Automatic |
| Product Dimensions | 2 x 1 x 2 inches |
| Terminal | Through Hole |
| UPC | 757347651180 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Wholesale Sensors
- **Connector Type:** Male-to-female
- **Contact Type:** Normally Open
- **Current Rating:** 15 Amps
- **Item dimensions L x W x H:** 2 x 1 x 2 inches
- **Material:** Brass
- **Operating Voltage:** 120 Volts (AC)
- **Operation Mode:** Automatic
- **Switch Type:** Limit Switch, Temperature Switch
- **Terminal:** Through Hole

## Images

![Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch - Image 1](https://m.media-amazon.com/images/I/41iQhmoUvaL.jpg)
![Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch - Image 2](https://m.media-amazon.com/images/I/51055c7nkFL.jpg)
![Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch - Image 3](https://m.media-amazon.com/images/I/519Hde6r2iL.jpg)
![Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch - Image 4](https://m.media-amazon.com/images/I/51RHcdqgUjL.jpg)
![Pentair 42001-0063S Replacement High Limit Switch | 12-Month Warranty & USA Support | Designed for Pool Heater Repair | Easy Installation Switch - Image 5](https://m.media-amazon.com/images/I/51V6JSLJ5sL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works exactly as described
*by D***N on June 7, 2023*

Bought this item to repair a Pentair Mastertemp 400HD. Tried to use our pool heater for the first time this season and was met with disappointment. When our Easytouch called for heat, the heaters would light up, with the "service heater" light on. Heater would not attempt to light and blower motor dis not activate. I removed the top panel to read the service codes on the back of the main board and the HLS high limit sensor led light was lit. Ordered a more expensive sensor from another vendor on Amazon, because it said it was OEM. Turned out it was falsely advertised and was a non oem replacement like the one sold in this add. I returned, then purchased this non oem replacement and could not be happier. Cheaper price and it functions just like advertised.

### ⭐⭐⭐⭐⭐ Good quality
*by B***N on May 27, 2025*

Easy install and works as expected

### ⭐⭐⭐⭐⭐ Fine
*by B***H on June 11, 2025*

Fit good, worked fine.

## Frequently Bought Together

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-12*