Raypak 009133F Pressure Switch

When you're troubleshooting a Raypak unit that won't fire, the Raypak 009133F Pressure Switch is often the first safety component to inspect. This 11 PSI pressure switch is a critical OEM pool heater part designed to monitor water flow and protect the heat exchanger from dry-firing. Engineered for a wide range of Raypak digital atmospheric and Low NOx heaters, including the 206A, 266A, 336A, and 406A series, this switch ensures the burner only ignites when the system maintains the correct hydraulic pressure. Featuring a 1/4 NPT connection and SPDT contacts, it provides a reliable hard-wired safety interlock that prevents expensive component meltdowns caused by pump failure or clogged filters. For contractors, the 009133F offers an exact drop-in fit for Raypak heater troubleshooting, eliminating the calibration guesswork associated with generic adjustable switches and maintaining the equipment's original safety listings.

• Broad Compatibility: Supports Raypak models ranging from the R185A through the R407A, ensuring versatility for your service van inventory.
• Precision Safety: Factory-set at 11 PSI to provide consistent activation thresholds and prevent high-limit tripping or manifold damage.
• Rugged Construction: Built with durable materials to withstand the corrosive environment of pool chemistry and high-heat cycles.
• Direct OEM Replacement: Guarantees proper thread engagement and electrical terminal alignment for faster pool heater repair.

How do I know if the Raypak 009133F is faulty?
If the heater displays a "Water SW Open" or "FLo" error code despite the pump running, use a multimeter to check for continuity across the switch terminals. If the circuit stays open while under pump pressure, the diaphragm or internal contacts have likely failed.

Does this switch require teflon tape during installation?
Yes, apply a small amount of thread sealant or teflon tape to the 1/4 NPT threads. Be careful not to overtighten, as most Raypak manifolds use plastic or bronze headers that can crack under excessive torque.

Can I use this on a Low NOx model?
Absolutely. This part is the specified replacement pressure switch for both standard atmospheric units and the 207A-407A Low NOx series manufactured after October 2004.

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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.