Zodiac Vortex 4 control box – genuine replacement (supersedes W2076A, W2078A) - W2076B

Zodiac Vortex 4 control box – genuine replacement (supersedes W2076A, W2078A)

This is the genuine Zodiac control box (coffret de commande) for the Vortex 4 robotic pool cleaner. It is the external power-supply and control unit that converts mains AC power into the low-voltage DC supply required to drive the robot’s motor and navigation logic. It supersedes the earlier references W2076A and W2078A, consolidating both into a single updated unit.

What the control box does

The control box sits poolside and manages every aspect of the robot’s operation: it steps down and regulates the mains supply, drives the cleaning cycle timer, and interprets any remote-control or programme inputs before sending the correct signals down the floating cable to the robot. Without a fully functioning unit the Vortex 4 will not start, will stop mid-cycle, or will behave erratically.

Compatible models

This unit is designed for the Zodiac Vortex 4 (model W9440). It also fits the Vortex 2 and Vortex 3 in certain configurations. It is not compatible with the Vortex 4 4WD variant, which uses a separate control box reference. Always cross-check against your robot’s exploded-diagram parts list before ordering.

Symptoms that indicate the control box needs replacing

The most common failure signs are: the robot not powering on at all despite a sound cable and secure connections; the unit tripping or cutting out shortly after starting; error lights or no indicator lights on the box itself; intermittent stopping during a cleaning cycle; and visible damage such as burn marks or a faulty power socket on the enclosure.

Why genuine matters

A counterfeit or incompatible control box risks delivering incorrect voltage or current to the motor, accelerating wear on the drive train and potentially voiding your warranty. The genuine Zodiac unit carries the correct EC safety rating (type EC7-105, input 220–240 V) and is engineered to the exact electrical specification of the Vortex 4 platform, ensuring reliable cycle timing and safe poolside operation.