Canada-Wide Shipping Look for Free Shipping label on select items!
Pick-up Location 3280 Steeles Ave W, Unit #22
Concord, ON • Click for Map & Hours
COVID-19 Notice Our website remains open for business. We offer a curbside pickup and Canada-wide shipping. Our physical locations will remain closed to the public.

Jandy High Limit Switch Harness Assembly

List price: $81.24
You save: $11.25 (14%) Get an extra 3-10% off through our Rewards Program
-3% -7% -10%
Price in points: 1400 points
Reward points: 7 points
In stock
I acknowledge that all replacement parts are final sale and installation of this product must be performed by a professional technician; self-installation can void manufacturer's warranty.

Quick Overview

Jandy R0457400 High Limit Switch Harness (130°F & 150°F). Used in the following models: LXi 250, LXi 300, LXi 400, Legacy LRZE125, LRZE175, LRZE250, LRZE325, LRZE400

Jandy High Limit Switch Harness

When you get an error from your pool or spa heater, it can be stressful. But, all water heaters will require some form of service or repair to ensure they continue to function over time. Conveniently, Zodiac and Jandy pool and spa heaters include self-diagnostic capabilities that can inform you if your heater needs service, and what kind might be needed.

If you've received a high-limit error on your Jandy/Zodiac pool or spa heater, the R0457400 High Limit Switch Harness may be exactly what you're looking for.

Using the R0457400 Jandy High Limit Switch Harness

If you've gotten a high-limit error from your Zodiac or Jandy pool or spa heater, chances are that you can have your heater running again with a quick part replacement. The R0457400 Jandy High Limit Switch Harness can be used to replace the high limit harness on Zodiac/Jandy Legacy LRZE pool and spa heaters (models 125, 175, 250, 325 and 400) and LXi Low NOx heaters (models 250, 300 and 400).

If you're in need of a new high limit switch harness for your Jandy or Zodiac heater, be sure that the R0457400 is a fit for your existing heater for a fast repair.

Used with:


• All Jandy Legacy LRZE models

• All Jandy LXi models

• Might be compatible with older models as long as the part number is listed in the product manual


No posts found

Write a review
  • Installation
  • Request a Quote on Installation

    Toronto Pool Services

    Pool Equipment installation services are provided by our partner, Toronto Pool Services.

    All installations are performed by certified technicians and are backed by a one-year labour warranty. By submitting this form you will share your information with our partner and they will provide you with a quote by email. You are under no obligation to purchase the product or the installation service. Product prices on do not include installation costs.

    For more information, visit

    NOTE: Product images are for illustration purposes only and may not exactly match the actual product due to seasonal model, color or design changes. When shopping for parts we strongly recommend to check the SKU or "Part Number" which is listed on each product page. If you are unsure whether this is the correct product or need assistance please contact us.

    Just a quick reminder - Toronto Pool Supplies is an online-only store. Our Concord, ON location is a pickup point, not a retail store and we cannot service walk-in customers. If you want to pick up your items in person please place an order online first and we will email you when it's available for pickup.

    New Hours for 2021 Season: Mon-Wed: 9AM - 5PM / Thu: 9AM-8PM (Extended) / Fri: 9AM-5PM