Davey - ProMatic MPS / ESR / ESC 36 Salt Chlorinator Electronic Control Board (PCB) - M1117A36EUSP

Davey – ProMatic MPS / ESR / ESC 36 Salt Chlorinator Electronic Control Board (PCB)

This is the genuine Davey replacement printed circuit board (PCB) for the ProMatic 36 salt water chlorinator, covering MPS 36, ESR 36, and ESC 36 controller variants. The PCB is the electronic brain of the ProMatic control unit, regulating power output to the electrolysis cell, interpreting sensor signals, and driving the display and protection functions. It is typically replaced after a power surge, moisture ingress, overheating event, or persistent fault codes that cannot be resolved by cleaning the cell or correcting water chemistry.

Compatibility

This board is designed specifically for the Davey ProMatic 36 series — models MPS 36, ESR 36, and ESC 36 — which are salt chlorinators suited to residential pools in approximately the 120–160 m³ range. It is not interchangeable with other output sizes in the ProMatic range (such as the 16, 24, or 48 models), so always verify your controller model number before ordering.

Why genuine matters

As an original Davey spare part, this PCB is engineered to the exact electrical specification of the ProMatic 36 controller, ensuring correct cell protection logic, accurate salinity and flow-switch response, and compatibility with the unit’s display and wiring harness. Aftermarket boards may not replicate Davey’s proprietary protection algorithms, which could expose the cell electrodes to damaging operating conditions and void any remaining warranty.

Installation

PCB replacement is an electrical task that must be carried out by a qualified pool technician or electrician, in accordance with applicable IEC wiring standards and local regulations. Always isolate mains power completely before opening the controller housing, and refer to the official Davey ProMatic installation and operating instructions for board orientation, connector positions, and post-installation checks.