If your Braemar evaporative air conditioner produces a fishy smell when operating, you’re not imagining it.
A fishy odour is a surprisingly common complaint among owners of older evaporative cooling systems, particularly those that have not been serviced regularly.
While the smell can be unpleasant, it is usually a sign that the system requires cleaning, maintenance or filter pad replacement rather than a major repair.
Understanding the causes can help restore fresh, clean airflow throughout your home.
Why Fishy Smells Occur In Evaporative Coolers
Unlike refrigerated air conditioning systems, evaporative coolers use water and filter pads to cool incoming air.
Over time, minerals, sludge and organic material can accumulate inside the unit.
When these contaminants build up, unpleasant odours can develop and be distributed throughout the house whenever the cooler operates.
Braemar systems are no exception.
In many cases, the fishy smell is linked to years of scale buildup and poor water quality inside the cooler.
Heavy Scale Buildup
One of the most common causes of fishy smells in Braemar units is excessive mineral accumulation.
Perth water naturally contains minerals that remain behind as water evaporates.
Over time, these minerals build up throughout the system including:
• Filter pads
• Reservoirs
• Water distribution systems
• Drain systems
If maintenance has been neglected, the scale can become surprisingly thick.
As contamination increases, unpleasant odours often develop.
Dirty Filter Pads
Filter pads play a major role in cooling performance and air quality.
Over time they can collect:
• Dirt
• Dust
• Scale
• Organic debris
• Sludge
When pads become heavily contaminated, they can develop strong odours that are circulated throughout the home.
In many cases, replacing the filter pads is one of the most effective ways to eliminate fishy smells.
Sludge Accumulation
The reservoir at the base of the cooler often collects debris over the years.
Common contaminants include:
• Dirt
• Dust
• Insects
• Leaves
• Mineral deposits
This material eventually forms sludge.
When combined with warm weather and water, the resulting odours can become quite noticeable.
A thorough reservoir cleanout is often required.
Poor Water Quality
Water quality has a direct impact on the cleanliness of an evaporative cooler.
If drain systems are not operating correctly or maintenance has been neglected, mineral concentrations increase.
This can accelerate:
• Scale buildup
• Filter pad contamination
• Reservoir contamination
• Odour development
Maintaining clean water is one of the keys to keeping the system smelling fresh.
Lack Of Annual Servicing
Many fishy smell complaints occur in systems that have not been serviced for several years.
Without regular maintenance:
• Scale accumulates
• Sludge builds up
• Filter pads deteriorate
• Water quality declines
Eventually unpleasant smells become noticeable whenever the cooler operates.
Annual servicing helps prevent these conditions from developing.
Can The Smell Affect Cooling Performance?
Often, yes.
The same contamination responsible for unpleasant smells can also affect:
• Airflow
• Water distribution
• Cooling efficiency
• Overall system performance
This is why systems with fishy smells frequently benefit from a complete service and inspection.
What Happens During A Braemar Cleanout?
When investigating fishy smells, technicians will typically inspect:
• Filter pad condition
• Reservoir contamination
• Scale buildup
• Drain operation
• Water distribution systems
• General system cleanliness
Depending on the condition of the unit, recommendations may include:
• Deep cleaning
• Filter pad replacement
• Water management repairs
• General maintenance
Can New Filter Pads Help?
Very often, yes.
If the existing pads are heavily contaminated, replacing them can dramatically improve:
• Air quality
• Cooling performance
• Odour control
• Airflow
Many homeowners are surprised by the difference new filter pads can make.
Signs Your Braemar Needs Attention
You should arrange an inspection if you notice:
• Fishy smells
• Musty odours
• Reduced cooling
• Increased humidity
• Poor airflow
• Visible scale buildup
Addressing the issue early can help avoid larger maintenance problems later.
Book A Braemar Service In Perth
If your Braemar evaporative air conditioner smells fishy, Air Legends can inspect the system and identify the cause.
We service and repair Braemar evaporative cooling systems throughout Perth and can assist with deep cleaning, filter pad replacement, scale removal and annual maintenance.
Contact Air Legends today to arrange a professional Braemar inspection.