Swimables SW41063 high limit switch for Pentair MasterTemp and StaRite MaxETherm heaters. Detects high water temperature (>135F), shuts off gas for safety, compatible OEM replacement (420010063S).
Key Features:
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OEMequivalent replacement: Replaces Pentair/StaRite part 420010063S (also known as STA1516255), compatible with MasterTemp and MaxETherm models SR200, SR333, SR400
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Hightemperature cutoff: Designed to trip at approximately 135F to immediately shut off gas flow when water temperature exceeds safe limits
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Safetycritical function: Prevents heat exchanger damage and system faults by responding to HLS error code on the heater control board
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Durable construction: Brass housing and dual spade terminals ensure rugged use and secure electrical connection
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Easy installation: Compact inline switch with two spade connectors fits directly on manifoldno wiring harness required
Product Overview:
The Swimables SW41063 High Limit Switch is a direct-fit, high-quality replacement for the Pentair/StaRite OEM part 420010063S. Installed in the outlet of MasterTemp and MaxETherm heaters (models SR200, SR333, SR400), this switch serves as a crucial safety device. It continually monitors water temperature, and if the system exceeds approximately 135F, the switch immediately opens the gas circuittriggering an HLS fault and shutting down the heater to prevent overheating and protect the heat exchanger.
Housed in durable brass with dual spade terminals, the SW41063 is built for long-term reliability. Its a one-time-use safety deviceonce tripped it must be replaced to restore protection.This compact unit mounts easily onto the manifold, and its simplicity ensures faster service calls and reduced downtime.
Ideal for pool technicians and knowledgeable homeowners, installing the SW41063 reinstates critical safety functions and allows the heater to resume normal operation. Its recommended to replace this switch upon HLS fault indication or during preventive maintenance to ensure continued safe and efficient heating performance.
