Brivis Wall Controllers and Thermostats: Genuine Replacement Guide
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.
When a Brivis wall controller stops working, or you are ready to upgrade to something newer, the right replacement comes down to what your system already supports. Brivis makes a small range of controllers and thermostats, and each one suits a different kind of system. This guide walks through each option so you can order the right one the first time. You will find the full range in our Brivis wall controllers and thermostats collection, alongside the heater and cooling parts they connect to.
A wall controller might look like a minor accessory next to the heater itself, but it carries more responsibility than its size suggests. It is the only part of the system most homeowners ever touch, and a fault here can make a perfectly healthy heater or cooler appear broken when it is not. Getting the replacement right the first time saves a callback and saves the customer from paying twice.
Controller Types Overview: NC-6, NC-7, Touch Wi-Fi and GDH
Brivis has sold four main controller options over the years. Each one suits a different kind of system. Picking the right one starts with knowing what your current setup can support, not simply choosing the newest model on the shelf.
Brivis Networker NC-6
The NC-6 is the standard networked controller across the Brivis range. It runs both heating and cooling from one wall unit using physical buttons rather than a touchscreen. The NC-6 suits older and mid-generation Brivis systems that were built for networked control from the outset.
After years of daily use through cold Melbourne winters or humid Brisbane summers, the buttons or display are usually the first things to wear out, well before the network wiring underneath gives any trouble. If the current controller is an NC-6 and it has failed, a like-for-like replacement is usually the simplest path, provided the existing controller type and wiring are confirmed first. The Brivis Networker NC-6 controller is the direct replacement for this application.
Brivis Touch NC-7
The NC-7 does the same job as the NC-6 with one key difference: it swaps the physical buttons for a touchscreen while the network logic underneath stays the same. Many homes already wired for NC-6 control may be able to take an NC-7, but compatibility should be confirmed against the specific heater, cooler, and interface requirements before ordering. It is a popular upgrade for homeowners who want a more modern interface on the wall, provided the system supports it.
See the Brivis Touch NC-7 controller for full details on this upgrade path, including any wiring revision notes for older generation systems.
Brivis Touch Wi-Fi Kit
The Touch Wi-Fi Kit goes one step further. It adds app control through a phone on top of the touchscreen interface, allowing heating and cooling to be adjusted remotely as long as Wi-Fi is available at the home. This is the right choice for compatible Brivis Touch controller installations where the customer wants remote app control. It is not a standalone replacement for every wall controller, so confirm the existing controller, system compatibility, and Wi-Fi signal before ordering.
It is particularly useful through a Darwin build-up season or a hot Perth summer when having the system running before arriving home makes a real difference. The Brivis Touch Wi-Fi controller kit page has full system compatibility details to confirm whether a given installation supports the upgrade.
Brivis GDH Manual Thermostat
Not every home needs a networked controller. On a heat-only system with no cooling unit to manage, the GDH manual thermostat is the simpler and more appropriate fit. It is a 24V digital unit with no network communication requirement, because there is nothing for it to talk to.
This is the budget option, and it suits heat-only setups well, particularly in cooler regional areas where summer cooling was never part of the original installation. There is no touchscreen and no app, just straightforward heat control. The Brivis GDH manual thermostat is the direct product listing for this model.
Tradie Pro Tip: If a homeowner describes their old controller as having physical buttons and a small screen, that is often an NC-6. A quick description over the phone can help narrow it down before you have seen the unit. Touchscreen only with no buttons may indicate the NC-7 or Wi-Fi Kit. Simple dial or minimal display usually points to the GDH. Confirm the part code or controller model before ordering.
How to Identify Your Current Controller
Before ordering anything, check what is currently on the wall. The model name is usually printed on the controller face, sometimes small near the bottom edge, or on the back where it clips onto the wall plate.
If the controller has failed completely and the screen will not light up, the type can often be identified from its physical shape. The NC-6 has visible physical buttons around a small screen. The NC-7 and Touch Wi-Fi Kit both use a full touchscreen with no separate buttons. The GDH manual thermostat is the simplest visually, usually with a basic dial or a small digital display.
If the type cannot be confirmed from the old unit, check what the system can support rather than guessing. A heat-only system with no cooling wiring will only ever have supported the GDH thermostat or a basic NC-6 setup. A combined heating and cooling system points to one of the three networked options. Checking the heater data plate is also worthwhile, as some installations list the original controller model alongside the heater details.
On commercial sites with several units running from shared controllers, check each wall plate individually rather than assuming they are all the same model. Buildings extended or retrofitted over different years often have a mix of NC-6 and NC-7 units across different zones, even when the system reads as a single job on paper. A brief walk-through before ordering is faster and cheaper than ordering the wrong quantity of the wrong model.
Thermostat vs Smart Controller: What the Difference Means Practically
A thermostat like the GDH manages temperature for a single heat-only system. There is no network, no zoning, and no app. It turns the heater on and turns it off again once the room reaches the set temperature. A smart controller like the NC-6, NC-7, or Touch Wi-Fi Kit talks to more than one part of the system. On a combined heating and cooling setup, it manages both sides from one interface. On a zoned system, it can manage temperature across different parts of the house independently.
Zoning is where the gap between a basic thermostat and a smart controller shows up most clearly in practice. A thermostat has no concept of zones at all. A smart controller can hold separate settings for different areas and adjust each without affecting the others. If a customer is asking for room-by-room control and the system is currently running a GDH thermostat, that request is not a controller swap. It is a larger conversation about whether the ductwork supports zoning in the first place.
This distinction matters most when planning an upgrade rather than a like-for-like replacement. Fitting a smart controller onto a system that was only ever wired for basic heat-only operation will not work regardless of how capable the new controller is. The wiring and zoning logic must already exist for a smart controller to have anything to manage. If any part of the upgrade job goes beyond the low-voltage control cable and into mains electrical wiring, that work requires a licensed electrician. For electrical safety and licensing requirements, check the regulator in your state or territory before carrying out any work involving wiring, mains power, or system commissioning.
Compatibility Reference Table
The table below gives a quick reference across the four controller options. Compatibility comes down to two things: what the system already supports, and what is physically wired into the wall.
| Controller | Interface | App Control | Network Required | Best For |
|---|---|---|---|---|
| NC-6 Networker | Physical buttons and small screen | No | Yes | Like-for-like replacement on existing NC-6 system |
| NC-7 Touch | Full touchscreen, no buttons | No | Yes | Interface upgrade from compatible NC-6 systems after compatibility check |
| Touch Wi-Fi Kit | Touchscreen plus smartphone app | Yes | Yes | Compatible Touch controller systems where remote app control is required |
| GDH Manual Thermostat | Basic dial or digital display | No | No | Heat-only systems, budget replacement |
Thermistor and Wiring Compatibility
One component that gets overlooked during controller swaps is the thermistor lead. This is the small sensor and wiring loom that feeds temperature readings back to the controller. If a new controller is not reading temperature correctly after installation, the thermistor lead is worth checking before assuming the new controller itself is faulty. The sensor and controller fail independently of each other, and replacing one does not automatically resolve a fault caused by the other.
The Brivis thermistor lead (BS80019789) is the standard replacement, supplied with its own loom and mounting bracket as a complete assembly. If a controller swap has been completed and temperature readings are incorrect or erratic, replacing the thermistor lead is the next diagnostic step before any further investigation of the controller itself.
The number of wires running into the old controller is also a useful compatibility check before ordering. A basic thermostat typically runs on just two low-voltage wires. A networked controller needs more conductors to carry data between the controller and the rest of the system. If the old unit comes off the wall and only two wires are present, that is a strong indicator of a heat-only thermostat setup regardless of what the homeowner remembers the original controller looking like.
Did You Know? The thermistor lead and the controller are sold separately because they fail independently. A thermistor that has degraded over ten years of heating seasons can produce incorrect temperature readings even through a brand-new controller. Always check the lead when a new controller is showing temperature faults on a first startup.
Ordering by Part Number
Once the correct controller type has been confirmed, ordering comes down to matching the part code rather than just the model name. Check the part code on the back of the existing unit if it is still readable, or note the exact model name from the front face. For the NC-6 and NC-7, also confirm whether the existing unit is an older or newer hardware revision, as minor wiring differences have appeared across the production run over the years. A quick photo of the back of the unit before removal is the simplest way to capture this detail.
Brivis has not published a single universal part number across every NC-6 production run, so confirming the exact revision against the installed unit is important rather than ordering from memory of a previous job. For the Touch Wi-Fi Kit specifically, confirm that the home router signal reaches the controller wall position before the kit arrives on site. A weak Wi-Fi signal at the install point is a common and avoidable delay after the new kit has already been delivered.
Tradie Pro Tip: On commercial sites and multi-zone jobs, keep a record of which controller revision was fitted alongside your other equipment documentation. This makes the next service call significantly faster, whether it is your team or another technician picking up the job.
If you are weighing up which controller suits an upgrade rather than a straight replacement, the dedicated comparison covers the NC-6, NC-7, and Touch Wi-Fi Kit side by side with a closer look at which one suits which kind of job. Compare all Brivis controllers before making the final call. If you have already confirmed what you need, our team can verify stock and compatibility before you order.