Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
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.
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Connects Safety System Components: Facilitates the electrical connection between limit switches and control board to maintain accurate temperature regulation
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Ensures Safe Heater Operation: Helps activate shutdown protocols if unsafe temperatures are detected, preventing damage to internal heater components
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Fits Jandy LXi and LRZE Models: Tailored specifically for use in Jandy’s LXi and LRZE heaters for OEM-grade compatibility and reliable integration
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Reliable and Durable Design: Constructed with heat-resistant, poolside-tested materials that ensure long-lasting safety performance
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Restores Factory Safety Functionality: Replaces damaged or aging wiring to restore heater safety features with minimal installation effort

