Fluidra - Three-Phase Phase Controller for Zodiac Pool Heat Pumps (PFPREM / PM30 / Z300)

Fluidra – Three-Phase Phase Controller for Zodiac Pool Heat Pumps (PFPREM / PM30 / Z300)

This is the genuine Fluidra/Zodiac three-phase phase controller (SKU WTC03940), designed as a direct replacement internal component for a range of Zodiac three-phase pool heat pumps. Its role is to monitor the incoming three-phase power supply, ensuring the phases are present and correctly sequenced before allowing the heat pump’s compressor and fan circuits to operate — protecting the unit from damaging phase loss or phase reversal conditions.

Compatibility

This phase controller is the correct replacement part for the Zodiac PowerFirst Premium (W20PFPREM11T, W20PFPREM11TD, W20PFPREM15TD), PM30 (WH000210, WH000213, WH000215), Z300 three-phase (WH000016, WH000018, WH000021), Z400 R410 (WH000293, WH000294, WH000297, WH000298, WH000301, WH000302), and PowerForce 25/35 series heat pumps. Always cross-reference your heat pump’s model reference before ordering to confirm fitment.

Why Genuine Matters

As a safety-critical electrical component, fitting a genuine Fluidra/Zodiac phase controller ensures precise trip thresholds matched to the original heat pump’s design specification. Third-party alternatives may not protect the compressor correctly under phase-fault conditions, risking costly damage to the heat pump. A genuine part also preserves any remaining manufacturer warranty on the appliance.

Installation

Replacement of this component involves working inside the heat pump’s electrical enclosure on a three-phase supply and must be carried out by a qualified electrician or pool heating technician. Ensure the unit is fully isolated from the mains supply before any work begins. Refer to the relevant Zodiac service diagram for your specific heat pump model for correct wiring and mounting orientation.