Davey - ESC Max / Plus Model P Triac Rectifier Board (Pre-1994) - 1904

Davey – ESC Max / Plus Model P Triac Rectifier Board (Pre-1994)

This is the genuine Davey replacement triac rectifier board for Model P power supplies fitted to ESC Max and ESC Plus salt water chlorinators manufactured prior to 1994. The triac is the core power-control component on the chlorinator’s control board, regulating the DC current delivered to the electrolytic cell to produce chlorine. When this component or its associated rectifier circuit fails, the unit will typically lose output, produce error conditions, or cease chlorinating entirely.

Compatibility

This board is designed exclusively for Davey ESC Max and ESC Plus chlorinators featuring the Model P power supply, built prior to 1994. It is not compatible with later ESC Max or ESC Plus revisions. If you are unsure of your unit’s build date or power supply variant, check the label on the inside of the power supply cabinet or contact Davey technical support before ordering. This is a legacy spare part sold strictly while stock lasts.

Why Genuine Matters

The ESC chlorinator power supply operates at mains voltage and relies on precisely rated electronic components to regulate cell current correctly. A genuine Davey board ensures the correct triac rating, circuit layout, and compatibility with the original transformer and control circuitry — protecting both the electrolytic cell and the wider system from damage caused by mismatched aftermarket parts.

Installation

Replacement of this board involves working inside a mains-voltage power supply enclosure. Installation must be carried out by a qualified electrician or authorised Davey service technician. Ensure the unit is fully isolated from the mains supply before any work begins. Given the age of these systems, it is recommended to inspect surrounding components — including the transformer and wiring — for wear at the same time.