Brivis Evaporative Cooler Parts: What Fails and How to Replace It
Written by Rica Francia Macaspac, HVAC Shop content writer, in consultation with Aussie HVAC tradies and industry experts. Published: June 2026 · Last reviewed: June 2026.
Brivis evaporative coolers are a practical and cost-effective cooling solution across much of inland and suburban Australia, from the outer suburbs of Perth and Adelaide to homes in regional Victoria and central Queensland. When something stops working, many ordering-related faults come back to an electronic control component such as the PCB module, control box, network module, or wall controller. Pads, pumps, fans, and water distribution parts can also cause problems, but this guide focuses on the main Brivis control parts buyers commonly need to identify and replace. If you already know what you need, browse our range of Brivis evaporative cooler parts and filter by component type.
How Brivis Evaporative Coolers Work
An evaporative cooler works on a simple principle. A fan draws warm outside air through water-saturated pads. As the air passes through the wet pads, the water evaporates and absorbs heat from the air, dropping its temperature in dry conditions. This cooled air is then pushed through the ducting and into the home. Unlike refrigerative air conditioning, evaporative cooling does not use refrigerant or a compressor. It uses water, a pump, a fan, and electronics to control them.
This simplicity is why evaporative coolers are popular in low-humidity climates across WA, SA, Victoria, and inland Queensland. The fan motor, pump, pads, and water distribution system should still be checked during diagnosis, especially where hard water, dust, or seasonal shutdowns are involved. When the system stops responding to commands, fails to start, or runs incorrectly, the fault may sit in the PCB module, control box, network module, wall controller, pump circuit, water distribution system, or wiring connections.
Three things commonly accelerate component failure on Brivis evaporative coolers. Mineral scale buildup from hard water is a long-term issue in areas with high calcium content in the water supply, such as Perth and parts of regional South Australia. Scale can affect pump performance and restrict water distribution, and it may also contribute to issues around nearby electronic components over time. Electrical wear from repeated on-off cycling through the cooling season can degrade relay contacts and PCB components. UV exposure and temperature cycling in rooftop-mounted units can also affect plastic enclosures and wiring connections more quickly than on protected indoor equipment.
Tradie Pro Tip: On evap cooler service calls in Perth and Adelaide where hard water is common, check the pump and water distribution manifold for scale before condemning the PCB. A pump running against a blocked manifold can draw higher current, which may trip protection circuits on the control board and create symptoms that look like a board fault. Descale and flush the system first, then retest before pulling electronic components.
Common Evaporative Cooler Parts That Need Replacing
The following component categories cover the main Brivis evaporative cooler control parts buyers commonly need to identify and replace. Each one is a discrete electronic or network control component, and many faults in each category produce recognisable symptoms that help narrow down the correct replacement part.
PCB and Add-On Modules
The PCB, or printed circuit board, is the electronic brain of the Brivis evaporative cooler. It receives commands from the wall controller, manages the fan speed, controls the pump, and sequences the cooler's operating modes including cool, fan-only, and purge. When the PCB fails, the cooler may not respond to the wall controller, may run on one setting only regardless of commands, or may start and stop erratically without completing a normal operating cycle.
The 526 add-on PCB module is one of the common electronic replacement parts across the Brivis evaporative cooler range. The Brivis 526 PCB add-on module (BSB023072) adds control functionality to the base unit, enabling network integration and multi-speed fan control. It suits a range of Brivis evaporative cooler models. Confirm the unit model and series from the data plate before ordering, as module compatibility depends on the unit's control architecture rather than just the brand name.
Symptoms of a failed PCB module may include the cooler not responding to wall controller inputs, the fan running at only one speed regardless of the speed setting selected, the pump not activating when cooling mode is requested, or the unit entering an error state on startup. Before replacing the module, check all wiring connections at the board, as loose or corroded connections on a rooftop unit are a common cause of intermittent symptoms that can appear to be a board fault.
Low Voltage Network Module
The 516 low voltage module handles the network communication layer between the Brivis evaporative cooler and the broader Brivis home network, which can include both the evaporative cooler and a gas ducted heater in a combined heating and cooling system. Where the 526 add-on module manages the cooler's own internal control functions, the 516 module manages how the cooler talks to the rest of the system and to the wall controller over the network bus.
The Brivis 516 low voltage module (BSB023178) is the replacement for network communication faults on Brivis evaporative coolers. Symptoms of a failed 516 module typically involve communication loss rather than complete cooler failure. The unit may operate locally but not respond to network commands, the wall controller may not display cooler status correctly, or the cooler may not integrate with the gas heater in a combined system as expected. If the cooler operates correctly in a standalone mode but fails to communicate with the wall controller or heater network, the 516 module is one likely cause to check.
Did You Know? In a combined Brivis heating and cooling system, the evaporative cooler and gas heater share the same network bus and wall controller. A fault in the 516 low voltage module on the cooler side can sometimes create symptoms that look like a wall controller or heater network fault rather than a cooler-specific problem. If a combined system behaves erratically across both heating and cooling functions, check the cooler network module before replacing heater control components.
TEK467 Electronic Control Box
The TEK467 electronic control box is a self-contained control unit used on certain Brivis evaporative cooler models in place of the separate PCB add-on module approach. Where the 526 module is an add-on board that integrates into an existing control architecture, the TEK467 is a complete control box that handles cooler functions in a single enclosure. This makes it a simpler replacement in some cases, as there is one unit to identify rather than one module among several components.
The Brivis TEK467 electronic control box (BSB022970) is the replacement unit for models in the TEK series. Symptoms of a TEK467 failure are similar to those of a PCB module fault. The cooler may not respond to inputs, may run only on one setting, or may fail to start at all. The distinction is which control architecture your unit uses. Check the data plate and the existing control box configuration to confirm whether your unit uses the module approach or the TEK control box approach before ordering a replacement.
Confirming the correct replacement between the 526 module, 516 module, and TEK467 control box requires knowing both the model of the cooler and the control system type fitted. The BSB part code on the original component is the most reliable identifier. If the original component label is intact, read the BSB code directly. If the label is missing or damaged, use the model number from the data plate as your next reference point.
Controller and Network Integration
The wall controller is the interface between the user and the Brivis evaporative cooler. On standalone evaporative cooler installations, the controller manages fan speed, cooling mode, and on/off operation. On combined heating and cooling systems, the controller manages both the evaporative cooler and the gas ducted heater through the same network, switching between heating and cooling operation from a single interface.
The NC-6 Networker controller is the standard wall controller for Brivis systems that integrate both evaporative cooling and gas ducted heating. The Brivis NC-6 controller (BSB022890) controls both the heater and the cooler through the Brivis network bus, making it the correct replacement when the wall controller on a combined system fails. If only the evaporative cooler side of the system is affected and the controller itself shows no error, the fault is more likely in the 516 low voltage module than in the controller.
Controller replacement should be matched to the system type. A standalone evaporative cooler without a gas heater does not require the full NC-6 network controller and may suit a simpler controller variant. A combined system requires the NC-6 or equivalent network controller to manage both appliances. Confirm which controller type suits your system before ordering, as replacing a controller with one designed for a different system type will result in limited or incorrect functionality.
| Component | Function | Fault Symptoms | Key Selection Check |
|---|---|---|---|
| 526 PCB Add-On Module | Controls fan speed, pump, and operating modes | No response to controller, single-speed only, pump not activating | Confirm unit model and control architecture type |
| 516 Low Voltage Network Module | Manages network communication between cooler and wall controller | Communication loss, cooler works locally but not via network, combined system erratic | Confirm network integration type and BSB code |
| TEK467 Electronic Control Box | Self-contained control unit for TEK-series units | No response to inputs, single mode only, failure to start | Confirm TEK-series architecture from data plate |
| NC-6 Networker Controller | Wall controller for combined heating and cooling network | No user input response, display faults, combined system not switching correctly | Confirm system type: standalone or combined heating and cooling |
Identifying the Right Evap Cooler Part
Brivis evaporative cooler parts use BSB-prefixed part codes rather than the BS codes used on gas heater components. The BSB code is the manufacturer's identifier for evaporative cooler components and works on the same principle as the BS code: read it from the original component and use it to find the correct replacement. If the BSB code on the replacement part matches the BSB code on the original component, the part is correct.
The data plate on a Brivis evaporative cooler is typically located on the unit body, either on a panel accessible from the rooftop or on an access hatch on ceiling-mounted units. It lists the model number, series, and electrical specifications. Take a photo of the data plate before starting any diagnostic work, as you will need the model number to confirm component compatibility if the original part label is not readable.
Network type is the key variable that determines which module or control box suits your unit. The 526 module, 516 module, and TEK467 control box are not interchangeable, and the correct one depends on which control architecture is installed in your specific cooler model. The model number from the data plate is the primary reference for this. If you are unsure which module suits your unit after checking the data plate and component BSB codes, the Brivis evap cooler PCB compatibility guide covers compatibility in detail. You can also contact us with your model number and we can confirm the correct part before you order.
Tradie Pro Tip: On combined Brivis heating and cooling systems, always confirm which component belongs to which appliance before ordering. A symptom that appears to be in the cooler control system may have its root in the heater's network module, and vice versa. Trace the network bus from the wall controller to each appliance and test each module in isolation before deciding which one to replace.