OEM Jandy Water Pressure Switch R0457000 is a high-precision safety device engineered for Jandy LXi pool and spa heaters. This switch plays a vital role in monitoring system water pressure, ensuring the heater only operates when flow is sufficient to support safe function. If water pressure falls below the required threshold, the switch triggers a shutdown to prevent overheating and internal damage. Designed as a direct OEM replacement, it ensures compatibility with LXi models and supports long-term safety and efficiency in pool heating systems.

• Monitors Water Pressure in Real-Time: Ensures your heater only operates under safe flow conditions, shutting off when pressure drops to prevent overheating

• Protects Heater from Dry Operation: Prevents critical damage by deactivating the system during low-flow or blockage events, maintaining long-term reliability

• Designed for Jandy LXi Series Heaters: Precision fit for all LXi models, offering seamless installation and consistent performance across supported systems

• OEM-Approved for Durability: Manufactured using robust materials and tested to withstand poolside conditions, heat, and water exposure

• Restores Original Safety Functionality: Ideal replacement for restoring safe operating protocols and protecting expensive heater components

• (1)ÊJandy R0013200 Pressure Switch
• (1)ÊJandy R00457100 Tubing

• Jandy LXi Heater Models:ÊLXI250N, LXI250NN, LXI400N, LXI400NN, LXI250NC, LXI250NS, LXI400NC, LXI400NS Natural and LXI250P, LXI250PN, LXI400P, LXI400PN, LXI250PC, LXI250PS, LXI400PC, LXI400PS

Note: This pressure switch may be compatible with your system, please refer to your owners manual to ensure compatibility.

R0457000 Water Pressure Switch Ð Flow Sensor for Jandy LXi Heaters

R0457000 monitors water pressure and stops heater if flow is too low

required for safe operation of Jandy LXi250 and LXi400 heater models

sensor prevents overheating by detecting poor circulation

part includes tubing and switch for complete pressure signal

install if heater shuts off due to low pressure or flow issues

Jandy Heater Safety Switch R0457000 Ð 2-Piece Water Flow Monitoring Kit

use R0457000 when troubleshooting heater lockout from low pressure

pressure switch sends signal to control board to allow startup

OEM switch for LXi gas heaters ensures proper shutoff function

part works with both natural gas and propane LXi systems

tubing included for simple inline water pressure sensing

Pool Heater Flow Switch R0457000 Ð For Jandy LXi Shutdown Prevention

heater not firing? Pressure switch R0457000 may need replacing

critical part of internal safety loop for Jandy heater protection

switch cuts power if pressure drops below safe level

helps prevent dry-fire damage to heat exchanger components

mounts near header or flow manifold inside heater cabinet