Jandy R0457200 Limit Switch Set | 130F | 150F | LXi Heaters

OEM Jandy High Limit Switch Set R0457200 includes two precision-engineered switches that safeguard Jandy LXi pool and spa heaters from overheating. These temperature-sensitive switches shut down the heater when water temps rise beyond acceptable limits, preventing internal damage and maintaining user safety. Designed for direct compatibility with LXi models, this set provides added reliability with dual-switch redundancy. Ideal for proactive maintenance or replacing failed components, it restores the heater’s thermal protection system to OEM factory performance.

Highlights

• Activates Shutdown on High Temps: Detects overheating conditions and immediately cuts power to the heater to protect vital internal systems

• 2-Pack for Built-In Redundancy: Dual-switch configuration ensures that one backup remains functional even if the other fails, preserving system safety

• Fits All Jandy LXi Heater Models: Made to OEM specs for seamless compatibility with any LXi-series pool or spa heater

• Essential for Heater Safety Compliance: Plays a key role in maintaining manufacturer-recommended safety standards and prolonging equipment lifespan

• Reliable, Tested OEM Replacement: Constructed using premium components and tested to withstand the demands of continuous poolside use

Includes

• (1) Jandy R0457300 130F High Limit
• (1) Jandy R0023000 150F High Limit

Compatibility

• Jandy LXi Heaters
• Jandy Legacy LRZE/LRZM Heaters

Additional Info

Jandy R0457200 Temp Cutoff Switches – Heater Overheat Protection Set

part R0457200 includes two temp sensors with fixed shutoff points

shuts heater down if internal water exceeds safe operating temp

designed for dual-stage temperature protection in LXi units

R0457200 also fits some Legacy LRZM and LRZE heater models

heater error code for hi-limit? R0457200 may be the fix

130°F & 150°F Limit Switches R0457200 – Safety Pair For Jandy Heaters

dual sensor set protects your heater from over-temp malfunction

use if heater runs briefly then shuts off unexpectedly

OEM replacement kit from Jandy with color-coded connections

trusted by pool techs during tune-ups and heater service

simple screw-in install with existing wiring harness

R0457200 Dual High Limit Set – For Safe Heater Operation

heater must shut down if flow stops or temp climbs too high

130°F switch acts as first stage cutoff – 150°F is backup safety

required safety component for propane or natural gas pool heaters

use when replacing internal temp controls or relay board

ensures consistent protection in high-output heater systems

Diagram