Pentair High Limit Switch 42001-0063S
OEM high limit safety switch for Pentair MasterTemp and Max-E-Therm pool heater electrical systems.
Features
- Safety switch opens at unsafe high temperature conditions
- Designed for Pentair MasterTemp and Max-E-Therm heater electrical systems
- OEM replacement part for extended heater life
The Pentair High Limit Switch 42001-0063S is a critical safety component for residential pool and spa heaters. It detects when the water in the heater reaches a temperature above the designed safe limit and interrupts operation to prevent overheating of the heat exchanger. This switch is a direct replacement for Pentair and Sta-Rite Max-E-Therm and MasterTemp heaters, restoring proper thermal protection and reducing the risk of recurring HLS faults.
Pro Tip
When replacing, inspect associated thermistors and wiringa failing limit switch often indicates other wear points in heater control circuits.
