Swimables | SW-41-025 | Gas Shut‑Off Switch – 140°F Replacement for Pentair 42002‑0025S

Ensure safe heater operation with the Swimables SW‑41‑025 gas shut‑off switch, a direct replacement for Pentair part 42002‑0025S. Designed for MasterTemp and Max‑E‑Therm heaters, this 140°F switch prevents overheating by automatically cutting off gas flow when temperatures exceed safe limits.

Key Features

• OEM Replacement – Directly replaces Pentair part number 42002‑0025S, ensuring compatibility with MasterTemp and Max‑E‑Therm heaters.

• Safety Mechanism – Activates at 140°F to shut off gas flow, preventing potential overheating and damage.

• Durable Construction – Built with high‑quality materials to withstand the high temperatures and conditions within pool heater systems.

• Easy Installation – Designed for straightforward replacement; typically requires a ½" open‑end wrench for installation.

• Error Code Resolution – Addresses common error codes such as E‑05 and E‑06, often associated with faulty gas shut‑off switches.

Product Overview

The Swimables SW‑41‑025 gas shut‑off switch is engineered to meet or exceed OEM specifications, providing a reliable solution for replacing the Pentair 42002‑0025S switch in MasterTemp and Max‑E‑Therm pool heaters. This switch plays a critical role in monitoring and regulating gas flow to the heater, ensuring that it operates within safe thermal limits.

Over time, the gas shut‑off switch can degrade due to exposure to high heat, leading to inaccurate readings and potential overheating. Replacing a faulty switch can resolve common error codes such as E‑05 and E‑06, which are often triggered by overheating issues.

Installation is straightforward for those with basic mechanical skills. After ensuring the heater is powered off and has cooled, the old switch can be removed and the new one installed using a ½" open‑end wrench. It's advisable to apply a bead of RTV sealant to the threads of the new switch before installation to ensure a proper seal.