R0015500 | Jandy Pressure Switch for Legacy and Lite2 LD, LG, LJ Heaters | 1-10 PSI

OEM Jandy Pressure Switch R0015500 is a safety-critical flow monitoring device designed for a variety of Zodiac and Jandy gas pool and spa heaters. Operating within a 1–10 PSI range, this pressure switch detects insufficient water flow and automatically shuts down the heater to prevent overheating or internal damage. Compatible with models like the Legacy LRZE, LRZM, and Lite2 LD, LG, and LJ, it plays a vital role in preserving heater performance and protecting sensitive components. Built to OEM standards, this durable switch supports consistent operation and safe use across a wide range of installations.

Highlights

• Monitors Flow to Prevent Damage: Shuts down the heater if water pressure drops below safe thresholds, protecting internal components from overheating or malfunction

• Accurate 1–10 PSI Detection Range: Provides precise monitoring of system pressure, helping ensure heaters only operate when proper water flow is present

• Fits Jandy and Zodiac Heater Lines: Compatible with Legacy LRZE/LRZM and Lite2 LD, LG, LJ heaters, offering dependable cross-model performance

• Enhances Operational Safety: Helps prevent dry firing and heat exchanger damage, maintaining the safe, reliable performance of your heating system

• Long-Lasting OEM Construction: Built with high-quality materials for durability in high-moisture, high-temperature environments common to poolside installations

Includes

• (1) Jandy R0015500 Pressure Switch

Compatibility

• Jandy Legacy LRZE and LRZM Heaters
• Jandy Lite2 LD, LG, and LJ series Heaters

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

Additional Info

R0015500 Pressure Switch – 1-10 PSI Flow Sensor for Jandy Heaters

R0015500 detects low flow in Lite2 and Legacy heater systems

triggers heater shutdown when water pressure drops below safe range

part used in Jandy LJ, LD, LG, and Legacy LRZE heater models

adjustable from 1 to 10 PSI for flexible system calibration

install R0015500 if heater won’t fire due to low water pressure

Jandy Heater Pressure Switch R0015500 – Monitors Safe Flow Conditions

part R0015500 ensures heater only operates with adequate flow

helps prevent dry firing and internal damage from restricted flow

used in pool and spa systems with flow-sensitive heaters

R0015500 fits older Zodiac and Jandy gas heater platforms

heater turning off early? Check pressure switch with SKU R0015500

Pool Heater Flow Switch R0015500 – OEM Safety Component

protects heater from overheating when pump flow is too low

R0015500 supports pump-based water pressure feedback loops

part mounts easily in header or manifold assembly

replace when heater won’t start and flow rate is within normal range

trusted by pool pros for reliable safety shutoff