Pentair 472734 – Control Board Assembly for UltraTemp®/ThermalFlo® Heat Pumps
Product Overview
The 472734 control board assembly is a factory-authorized electronic module designed for select Pentair UltraTemp® and ThermalFlo® pool and spa heat pump systems. It restores full control, diagnostics, and efficiency to your heating system.
Key Features
- OEM replacement board with integrated diagnostics, error-code display and full control of compressor, fan and defrost cycles.
- Plug-and-play compatibility with harnesses used in UltraTemp and ThermalFlo models.
- Durable electronics and housing built for pool/spa outdoor environments and high-humidity conditions.
- Restores factory-level operation when original board has failed or is malfunctioning.
Technical Specifications
- Part Number: 472734
- Application: Control board assembly for Pentair UltraTemp® & ThermalFlo® heat pumps
- Includes: Control board, bezel/label assembly (varies by packaging)
- Weight: Approx. 1.5 lb (board only, typical)
Compatibility & Fitment
This control board is compatible with a wide range of UltraTemp® and ThermalFlo® heat pump models. Prior to installation, verify the serial/model number of your unit to ensure compatibility with part 472734.
Installation Instructions
- Turn off all power and shut off the heater system before starting.
- Remove the access panel, disconnect the wiring harnesses from the old board.
- Install the new board carefully, reconnect all harnesses, replace bezel/label if provided.
- Restore power, observe startup sequence and confirm proper operation with no fault codes.
Troubleshooting
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No display or unresponsive controls: Verify the connection to the board, power supply and correct board alignment.
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Persistent error codes: Ensure the board is the correct model, wiring harnesses are fully seated, sensors are functioning and the heater model is supported.
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Heater not heating or fan not running: Check motor/fan wiring, compressor connections and that the board has been installed correctly.
Maintenance Tip
Inspect the control board during annual heater service. If the keypad, display or board housing shows wear, discoloration or signs of moisture infiltration, replacement with part 472734 can help prevent unreliable operation and downtime.
