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Replacing a faulty transformer restores normal automated sanitizer output without requiring replacement of the full control system
maintaining the controlled environment required for consistent chlorine or bromine dissolution
inspect the mating pipe socket and the surrounding pipe section for stress cracks or UV degradation before installing the new flange
and Front Access skimmer lines
This is the Blue version — confirm the color of your original part before ordering
Pentair Control Panel Replacement Board Assembly | SolarTouch Control System | 521604 Variants Replacing a faulty transformer restoresThe Pentair Control Panel Replacement Board Assembly (521604) is the OEM replacement bezel and circuit board assembly for the SolarTouch Control System. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Electrical control components must be installed or replaced by a qualified electrician or certified pool technician. This assembly contains mains voltage circuitry. Do not attempt to install or service this component without proper certification.
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