Pentair 473744 UltraTemp High Pressure Switch

🔧 Replacement safety pressure switch for pool and spa heaters — designed to monitor system pressure and interrupt the ignition circuit when unsafe conditions are detected.

• ✅ Purpose: Monitors water/combustion pressure to protect heater components and prevent operation during unsafe pressure conditions.
• 🛠️ Build: Durable housing and standard electrical terminals for reliable long-term performance.
• ⚙️ Compatibility: OEM-style replacement for compatible residential pool and spa gas heaters. Verify compatibility with your heater model before purchase.
• 📋 Installation Notes: Turn off power and gas supply, relieve system pressure, disconnect wiring, replace switch and verify secure connections. Have a qualified technician complete installation and test operation per the heater manufacturer’s service instructions.
• 🔎 Inspection & Testing: After installation, run the heater through a full start-up cycle and confirm the safety switch interrupts and restores the ignition circuit as intended. If the switch trips repeatedly, investigate flow, pressure, and venting issues.
• ⚠️ Safety: Do not install or service gas-fired equipment unless you are trained and certified. Follow all local codes and manufacturer safety guidance.

💡 Why choose this replacement switch?

• Provides essential safety shutoff for pressure-related faults
• OEM-style fit and function for straightforward replacement
• Compact design for easy mounting in heater control assemblies

📌 Before You Buy: Confirm fit by comparing the physical switch, terminal layout, and pressure port to the part removed from your heater or consult your heater’s parts list. If uncertain, contact a licensed pool/heater technician for verification.