Pentair 475955z High Limit Switch Pool Heater

Product Description

The PENTAIR 475955z is a high limit switch designed to provide thermal overprotection in pool and spa heating systems. This safety component monitors operating temperatures within the heater and interrupts the heating circuit when temperatures exceed a safe threshold, preventing damage to internal components and reducing fire or burn risk. It is a direct-fit replacement part intended for installation by licensed pool and spa technicians or qualified HVAC service professionals working on Pentair heating equipment.

This high limit switch is specified for use in Pentair UltraTemp ETi Hybrid pool and spa heaters. It is suited for residential pool heating applications where maintaining safe operating temperatures is critical to system longevity and code compliance. Technicians performing seasonal maintenance, component replacement, or heater diagnostics on compatible Pentair hybrid heater models will find this a direct OEM-style replacement part.

Key Features

• Thermal shutoff function protects heater components from overtemperature conditions
• OEM-style replacement for Pentair UltraTemp ETi Hybrid heaters
• Direct-fit design supports straightforward component swap during service calls
• Safety-critical part that supports reliable heater operation and system protection

Compatibility

Designed for use with Pentair UltraTemp ETi Hybrid pool and spa heaters. Confirm model and serial number against Pentair documentation before ordering to ensure correct fitment.

Installation Notes

Installation should be performed by a licensed pool and spa technician or qualified service professional. Before servicing, shut off all electrical power to the heater at the breaker and allow the unit to cool completely before handling internal components. Follow all applicable local electrical codes and the manufacturer service documentation when replacing safety control components. Do not bypass or jumper the high limit switch under any circumstances.

Technical Specifications

• Component Type: High Limit Switch
• Application: Pool and Spa Heater Thermal Protection

Standard Information

• Brand: PENTAIR
• Manufacturer Part Number: 475955z