Overview
Bonaire is one of the more common names on Peninsula roofs, partly because it makes both ends of the local climate problem: ducted gas heaters for winter and ducted evaporative coolers for summer, often installed by the same builder on the same job. That also means 'my Bonaire is showing a fault' can mean two very different things depending on which appliance is doing it. This guide explains how Bonaire's fault-code and LED system actually works, based on Bonaire's own installation and controller documentation, what is safe for a homeowner to check without opening either unit, and why anything beyond that on the gas heater side is a job for a licensed gasfitter rather than a project for a Saturday afternoon.
How a Bonaire fault actually shows up
Bonaire's ducted gas heaters do not show a fault the way a modern appliance with a text screen does. On the 3-star and 4-star heater ranges, Bonaire's own installation documentation describes a two-LED system on the control board: a red LED that lights when the combustion fan is running correctly and the pressure switch has closed, and a green LED that flashes coded patterns to show the controller's status. Everything a homeowner sees during a fault starts with reading that green LED pattern, not with a plain-language message. [1]
Where a Navigator or touch-pad controller is fitted, Bonaire's own controller documentation adds a second layer that is genuinely useful: the system stores the last four faults in memory, and when the heater needs to be reset, the most recent fault code is displayed automatically on the controller screen. Bonaire's own guidance is direct about what to do with that number: have it ready for the service operator when you call, rather than trying to decode it yourself from the display alone. [2]
It is worth being upfront about a real limitation here. Bonaire's published consumer-facing documentation explains how to read the LED pattern and how to retrieve a stored fault code, but it does not print a single, complete, plain-language table mapping every numbered code to its exact cause in the homeowner-facing material that is easy to find online. The detailed numbered fault tables live on the 4-star unit's internal service pages and on trade-level reference material used by technicians, which is a similar situation to a lot of gas ducted heating brands. [1][3]
That gap is not a reason to panic or to assume the worst. It is a reason to treat the code the same way Bonaire itself tells you to: note it down, do the safe checks below, and pass the number on to a technician rather than trying to match it against an unofficial list found on a random website and drawing your own conclusions about what is safe to do next. [2]
What the lockout categories mean
Even without a full numbered table, Bonaire's own 4-star installation manual explains the LED pattern logic in a way that is genuinely informative. A long pulse in the green LED pattern always indicates the heater is in lockout, and the number of long pulses at the start of the pattern tells you which broad category of fault has occurred, while the short pulses that follow point to the specific cause within that category. [1]
One long pulse followed by short pulses covers lockouts caused by external switches and sensors: the thermistor, the over-temperature switch, the pressure switch, or the flame sensor. These are the faults most likely to trace back to an airflow restriction, a blocked flue, or a genuine flame-sensing problem, and they sit closest to the kind of external checks a homeowner can safely do. [1]
Two long pulses followed by short pulses covers lockouts caused by the controller hardware itself, or by the ignition system, the main gas valve, or the modulation valve. Three long pulses followed by short pulses covers safe-start faults or ground-connection faults. Both of these categories sit inside the heater's electronics and gas train, which is exactly the territory Bonaire's own documentation treats as being outside a homeowner's safe reach. [1]
The practical read on this is straightforward even without memorising every digit: a single long pulse pointing at a sensor or switch is worth checking the obvious external causes first, while two or three long pulses pointing at ignition, valves, or the controller's own electronics is a 'stop and call someone' situation from the outset, not a code to keep resetting. [1]
Common Bonaire codes and what they likely indicate
Trade-level Bonaire fault-code references, compiled by HVAC technicians who service these heaters regularly and cross-checked against Bonaire's own troubleshooting guidance, describe a fairly consistent picture across the common codes homeowners actually encounter. An overheat-related code typically means the outlet air temperature has climbed too high and the heater has shut down to protect itself, which lines up with Bonaire's own documented overtemperature protection at around 90°C. [3][1]
A code pointing to lost pressure or a flame-not-detected condition generally relates to the silicone pressure-sensing hose and fittings, or to the gas supply and flame sensor not confirming ignition. A code describing a transient shutdown, most often tied to the thermostat cycling off mid-cycle, is usually not something the heater considers a real fault at all, and Bonaire's own start-up sequence documentation notes that a genuine ignition lockout only occurs after six failed attempts to light. [1][3]
Codes clustered around ignition validation are also commonly reported after a heater has sat unused for a long period, such as at the start of the first cold snap of the season, because air can be trapped in the gas line and needs to be purged before a clean ignition can occur. This is a genuinely common, low-drama cause, but the purge itself involves the gas line and is not a homeowner task. [3]
It is worth repeating the honesty point from the previous section here: these code-by-code descriptions come from trade documentation and experienced Bonaire technicians rather than from one single official Bonaire consumer chart, and exact numbering can vary slightly between the 3-star and 4-star ranges and between control-board revisions. Treat the pattern as generally reliable, not as a substitute for a proper diagnosis on your specific unit. [3][1]
What is safe for a homeowner to check
Bonaire's own troubleshooting guidance is short and specific, and it is genuinely safe for a homeowner to work through before calling for help. Check that power and gas are both supplied to the heater, check that the thermostat's set temperature is above the current room temperature, and confirm the power indicator LED is lit on the controller. If it is not, check the power point, the circuit breaker, and any fuses on the unit's electrical panel before assuming the heater itself has failed. [1]
On 4-star models, confirm the thermistor is connected and correctly positioned in the air discharge duct, since Bonaire's own documentation notes the 4-star range simply will not operate if this sensor is not properly connected. This is a visible, external check involving the ducting rather than the heater's gas or electrical compartments, and it is one of the more common causes of a heater that seems to refuse to start at all. [1]
Check that duct outlets and registers around the house are open and not blocked by furniture or rugs, and check that the fresh air inlet and flue outlet outside are clear of leaves, debris, or anything else that could restrict airflow. Bonaire's own documentation specifically flags a blocked fresh air inlet or flue outlet as a cause of lockout, and both are external, visible checks any homeowner can safely make. [1]
If the safety shutdown has tripped, Bonaire's documented reset procedure is simple: switch the mains power off, wait a couple of seconds, then switch it back on, or on a Navigator-controlled unit, press the reset or enter key when the prompt appears on screen. If the same fault returns after one reset and after the checks above, that is the point where Bonaire's own guidance says to stop and contact service rather than repeat the process. [1][2]
Why anything beyond that legally requires a licensed gasfitter
Bonaire ducted gas heaters are gasfitting-regulated appliances in Victoria, and Energy Safe Victoria is explicit about the line: gasfitting work must be carried out by a person who holds the correct licence, because gas is inherently dangerous and unlicensed work on it is both illegal and potentially fatal. That covers the gas valve, the burner assembly, the ignition system, the flue, and the combustion chamber, none of which a homeowner should be opening on the strength of an online fault-code guide, including this one. [6]
The reason this line is drawn so firmly is carbon monoxide. Energy Safe Victoria's own guidance notes that faults such as blocked burners, clogged filters, and worn safety controls can increase the risk of a gas appliance spilling carbon monoxide, an odourless, colourless gas that can build up to dangerous levels well before anyone in the house notices anything is wrong. Properly checking for that risk requires a CO analyser and training a homeowner simply does not have. [5]
This lines up exactly with the categories described earlier. The single-long-pulse group, covering sensors and switches, includes some faults that are genuinely traceable to an external cause like a blocked flue. The two- and three-long-pulse groups, covering ignition, valves, the controller's electronics, and ground faults, sit squarely in gasfitter and licensed-technician territory, and Bonaire's own documentation does not offer a homeowner-side fix for that group at all. [1]
A heater that has been forced back into operation by repeatedly power-cycling past a persistent ignition or valve-related lockout is not a fixed heater. It is an unresolved fault running again, potentially with the exact safety mechanism that was protecting the household now disabled or bypassed. That is the specific outcome the licensing requirement exists to prevent. [6][1]
The evaporative cooler side, and what a technician actually does
Bonaire's ducted evaporative coolers run on the same brand and often the same house, but they are a genuinely different safety category, because there is no gas or combustion involved at all. A fault on the cooler side is more likely to relate to the water system, the fan, or the electrics: the float valve not closing at the correct water level, the water pump not running, a blocked bleed line, or a fan not reaching its set speed. The pump, fan motor, and wiring still sit behind the same electrical licensing requirement as any fixed appliance, so a cooler with a genuine electrical fault is an electrician's job, not a DIY one. [1][7]
What is genuinely safe for a homeowner to check on the cooler side mirrors the heater side in spirit: confirm the water isolating tap is turned on, confirm the tank and basin are free of obvious debris, check that duct outlets and registers are open, and check that nothing external is blocking the unit's air intake. Anything involving the pump wiring, the fan motor internals, or the control board itself should go to a technician, and evaporative coolers that sit idle over winter can develop scale, algae, or a musty smell in the filter pads if they were not drained and cleaned properly beforehand, which is one of the more common reasons a Bonaire cooler seems to 'fault' at the start of the first hot week of the season. [1]
On a heater call, a proper diagnosis starts with retrieving the stored fault history rather than just clearing the current lockout and hoping it does not return. Where a Navigator controller is fitted, that history of the last four faults is exactly what Bonaire designed the controller to preserve, and a technician will read it before touching anything else. From there, diagnosis moves into the areas a homeowner cannot safely access: gas supply pressure at the appliance, the flame sensor and igniter, the pressure switch and its silicone sensing tube, the flue and combustion air path, and the control board's ignition sequence, with a combustion and carbon monoxide check as a standard part of that visit rather than an optional extra. [2][5]
On the cooler side, a technician's visit typically covers the water system end to end: the float valve and water level, the pump and its wiring, the bleed rate for local water hardness, the fan speed range, and the condition of the filter pads. Either way, the visit should end with a plain explanation of what the fault meant, what caused it on this specific unit, what was done to fix it, and whether the unit's age and fault history suggest it is approaching the point where repair stops being the more sensible option than replacement. [1]
Hyde servicing Bonaire heaters and coolers across the Mornington Peninsula
Bonaire heaters and coolers are common across established Peninsula homes, and Hyde diagnoses and repairs both sides of the range regularly, from Mornington and Mount Eliza through to Rosebud, Rye, and the wider foreshore suburbs. A Bonaire fault light at the start of a cold snap, or a cooler that will not deliver on the first genuinely hot day, are two of the more frequent reasons Peninsula homeowners get in touch, and both are handled the same way: retrieve the fault history, diagnose properly, fix or replace what is actually faulty, and explain it clearly afterward. [1]
Being local matters for exactly the reason it sounds like it should. A gas heater lockout on a cold winter evening, or a dead cooler on the first 35-degree day of summer, are not problems that benefit from waiting several days for a callback, and Hyde's service and repairs team is set up to respond to Bonaire fault calls across the Peninsula as a priority rather than an afterthought behind new installation work. [1]
Hyde's service and repairs page is the right starting point whether the fault is on the heater or the cooler. The enquiry only needs the suburb, which appliance is affected, whatever fault light pattern or code is showing, and how the unit has been behaving, and Hyde can take it from there without the homeowner needing to have already decoded anything. [1]
For households with an older Bonaire heater that keeps returning ignition or valve-related lockouts, Hyde can also have the honest replacement conversation in the same visit, including whether a straight gas replacement or a reverse-cycle ducted upgrade makes more sense for the home going forward. That conversation works best once the immediate safety issue has been resolved, not while a fault light is still flashing. [1]
The Hyde takeaway on Bonaire fault codes
Bonaire's fault-code system is genuinely different depending on which appliance is flashing at you. On the ducted gas heater side, a single long pulse pointing at an external sensor is worth checking yourself first, but two or three long pulses pointing at ignition, valves, or the controller's electronics is a stop-and-call situation from the moment it appears, because of the carbon monoxide risk a malfunctioning gas heater can create. [1][5]
On the evaporative cooler side, most faults trace back to water, a blocked filter pad, or an electrical issue rather than anything with combustion, and while the risk profile is lower, electrical faults still legally require a licensed electrician rather than a DIY repair. [7][1]
The safe homeowner checklist across both appliances is short: power and gas or water supply, thermostat and controller settings, filters and filter pads, duct outlets and registers, and the visible external inlets and outlets. Everything past that, especially anything involving flame, ignition, the gas valve, or internal wiring, is licensed trade work under Victorian law. [1][5][7]
For Peninsula homeowners staring at a flashing light tonight, whether it is a heater in the middle of a cold snap or a cooler on a stinking hot afternoon, the practical takeaway is the same: run through the safe checks, note the pattern or code if there is a Navigator display, and call a licensed technician if it does not clear. Hyde services Bonaire systems across the Mornington Peninsula and can talk through what the fault likely means before anyone needs to decide anything else. [1]
References
Official sources used in this article
- 1.
3 & 4 Star Ducted Gas Central Heater: General Information & Installation Instructions
BonaireView source - 2.
- 3.
- 4.
- 5.
- 6.
- 7.
- 8.
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