Jandy R0457400 Limit Switch Harness | LXi | LRZE Heaters

OEM Jandy R0457400 High Limit Switch Harness is a factory-engineered wiring harness designed to link the high limit switches with the control board in Jandy LXi and LRZE heaters. This essential part enables the safety system to communicate accurately and react quickly to overheating conditions. By restoring this electrical connection, the harness ensures that critical temperature limits are properly monitored and enforced. Built for exact compatibility, it installs easily and offers dependable performance, helping maintain the efficiency, safety, and integrity of your heater over time.

Highlights

• Connects Safety System Components: Facilitates the electrical connection between limit switches and control board to maintain accurate temperature regulation

• Ensures Safe Heater Operation: Helps activate shutdown protocols if unsafe temperatures are detected, preventing damage to internal heater components

• Fits Jandy LXi and LRZE Models: Tailored specifically for use in Jandy’s LXi and LRZE heaters for OEM-grade compatibility and reliable integration

• Reliable and Durable Design: Constructed with heat-resistant, poolside-tested materials that ensure long-lasting safety performance

• Restores Factory Safety Functionality: Replaces damaged or aging wiring to restore heater safety features with minimal installation effort

Additional Info

Jandy R0457400 Harness – High Limit Switch Cable for LXi and LRZE

part R0457400 essential for connecting temp cutoff sensors to board

heater not responding to over-temp triggers? Replace R0457400

OEM part used in LXi and LRZE control box wiring

restore heater protection with accurate sensor wiring

includes factory-tested harness with precision-fit terminals

Heater Control Harness R0457400 – Connects Safety Switches to PCB

R0457400 links high-limit sensors with Jandy digital control board

compatible with both natural gas and propane heater systems

harness helps ensure quick shutdown during high-temp events

part used in routine heater service and fault code resolution

includes 2 cut washers for secure mounting to terminals

High Temp Limit Harness R0457400 – For Legacy and LXi Heater Systems

replace faulty wire harness R0457400 to restore heater shutdown safety

wire harness bridges high-limit switches to control circuit

use with temp sensors in Jandy LXi and LRZE heater cabinets

R0457400 prevents overheating by enabling circuit break feedback

part must be OEM to match resistance and voltage spec of board

Diagram