Zodiac - 4-way valve coil - R07804

Zodiac – 4-way valve coil – R07804

The Zodiac R07804 is a genuine replacement coil for the 4-way valve used in Zodiac pool heating systems. The 4-way valve is a core component in pool heating installations, responsible for directing water flow between the pool, the heat source, and the buffer circuit. The coil is the electromechanical actuator that controls the valve’s switching action — when energised, it generates a magnetic field that moves the valve spool to redirect the flow path. Without a functioning coil, the valve cannot switch positions automatically, which means the heating system can no longer respond to temperature control commands.

This spare part is designed specifically to restore correct operation to 4-way valve assemblies found in Zodiac Z900 series heating setups, including models compatible with the TD20-30 configuration. Replacing a faulty or burnt-out coil is a targeted and cost-effective repair that avoids the need to replace the entire valve body. The coil fits directly onto the valve stem and is secured in place, making it an accessible repair for a qualified pool technician.

Technical characteristics and compatibility

The R07804 coil is an OEM Zodiac spare part, manufactured to the original specification to ensure correct electromagnetic performance and a reliable fit. It is engineered for use with the Zodiac Z900 4-way valve range, specifically identified in the Zodiac catalogue alongside reference R08017 (TD20-30 variant) and related assemblies. As a solenoid-type actuator coil, it operates within the electrical parameters of the associated Zodiac heating control system. The coil interfaces directly with the valve body without modification, and replacement requires no specialist tooling beyond standard pool equipment servicing practice.

Because this is a genuine Zodiac part, it is produced to the same tolerances and materials as the original factory-fitted component, ensuring long service life and compatibility with the existing control wiring and valve housing.

Suitability and application

This coil is intended for pool owners and technicians maintaining Zodiac pool heating installations where the 4-way valve has lost automatic switching capability due to coil failure. It is suitable for both residential and light commercial pool setups equipped with the Zodiac Z900 heating valve series. If your heating system is showing faults related to water flow direction, the valve is stuck in one position, or the control unit is reporting a valve error, a failed coil is a common cause and this part provides the correct replacement. Always confirm the valve model reference on your installation before ordering to ensure compatibility.