Davey - ProMatic ESR 160/200 Control Box Transformer - M1701

Davey – ProMatic ESR 160/200 Control Box Transformer

This is the genuine Davey replacement transformer for the ProMatic (ChloroMatic) ESR 160 and ESR 200 salt water chlorinator control boxes. The transformer is a critical internal electrical component that steps down mains voltage to supply the correct power level needed to drive the electrolytic cell. It is typically replaced when the control box fails to produce chlorine due to an internal power fault, or when the transformer shows signs of overheating or electrical failure.

Compatibility

This transformer is designed specifically for the Davey ProMatic / ChloroMatic ESR 160 and ESR 200 series salt chlorinator control boxes — the ESR (self-regulating, fixed-polarity) models rated at 16 g/h and 20 g/h chlorine output respectively. It is not intended for the ESR 240/300 range (which uses a different transformer, part number 1705) or for ESC-series units. Always confirm your model designation before ordering.

Why Genuine Matters

Using a genuine Davey transformer ensures correct voltage and current output for your ESR cell, protecting sensitive electronics such as the PCB and thyristor from under- or over-voltage damage. Aftermarket or mismatched transformers can void your warranty and shorten the life of the control box. Sourced directly from Davey’s European parts programme, this is an OEM-grade component built to the original specification. Please note this part is available while stocks last and may not be reordered once depleted.

Installation

Replacement of the internal transformer must be carried out by a qualified electrician or authorised pool technician, as it involves opening the chlorinator power supply unit and working with mains-connected components. Ensure the unit is fully isolated from the mains supply before any internal work begins. Keep the control box away from acid vapours, chemical storage areas, and heat sources to maximise service life after installation.