Robertshaw 110-504 Water Heater Thermostat

The Robertshaw 110-504 is a specialized RV LP water heater thermostat designed for liquid propane applications in recreational vehicles. This 110 Series Uni-Kit features a 1-1/4" shank and utilizes 3/8" inverted flare connections for both the inlet and outlet, ensuring a high-integrity seal in high-vibration mobile environments. As a veteran-preferred gas water heater valve, it incorporates a non-cycling Energy Cut-Off (ECO) system that acts as a critical safety limit, shutting off gas flow if temperatures exceed safe operating parameters. With a 160°F high-temp stop and a 5-1/2" sensing element, this Robertshaw 110-504 thermostat provides the precise thermal regulation required for consistent water heater temperature control. For technicians performing field replacements, ensure the 11,000 BTU capacity and LP gas timing match your specific appliance's data plate before installation.

• Universal Compatibility: Engineered as a Uni-Kit replacement for various RV LP water heater models with a 1-1/4 inch shank.
• Enhanced Safety: Built-in Energy Cut-Off (ECO) prevents hazardous overheating by permanently interrupting gas flow if the limit is tripped.
• Standardized Fittings: Features 3/8" inverted flare ports to simplify plumbing integration without custom adapters.
• Reliable Sensing: The 5-1/2" sensing probe ensures accurate temperature detection for hot water heater thermostat efficiency.

How do I fix a water heater that won't ignite after a high-temp event?
If the ECO safety circuit has tripped due to excessive heat, the internal contact is designed to stay open. In this scenario, the Robertshaw 110-504 cannot be reset and must be replaced to restore pilot and burner function.

What is the difference between a standard flare and a 3/8" inverted flare?
Inverted flare connections, like those found on the 110-504, feature internal threads on the valve body rather than external. This design is highly resistant to loosening in RV applications subject to road vibration.

Can this valve be used for Natural Gas?
No, the 110-504 is factory-calibrated for Liquid Propane (LP) and is specifically designed for the pressure and BTU requirements of RV water heating systems.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.