HVAC Shop Blog

If you have narrowed a Brivis evaporative cooler fault down to the PCB or control module, the next step is confirming which specific module your unit uses. The 526 PCB add-on module, the 516 low voltage network module, and the TEK467 electronic control box are not interchangeable and each suits a different control architecture. This guide explains what each one does, how their fault symptoms differ, how to read the BSB part code to confirm compatibility, and which unit types each module suits.

When a Brivis evaporative cooler stops responding or runs incorrectly, the fault is almost always in the electronic control layer rather than the fan, pump, or pads. This guide covers the key replacement parts for Brivis evaporative coolers: the 526 PCB add-on module, the 516 low voltage network module, the TEK467 electronic control box, and the NC-6 Networker controller. Includes a component fault symptom table, guidance on BSB part codes, and how to identify the correct module for your unit.