Why Is My Heater Underperforming? Common Signs You May Need a Service

Melbourne’s winter chill is well and truly here. After a warmer than usual end to Autumn, temperatures have plummeted and we’re all turning to our heating systems for comfort, warmth, and relief.

Unfortunately, not all of us are lucky enough to own a reliable system. If your split system, ducted heating, or gas log fire seems to be underperforming, we’re here to provide some answers.

Let’s not waste any time and jump right into it!

The Signs Your Heater Needs Repairs

Our general recommendation is that heaters should be serviced either annually or once every two years (depending on the type). However, even if it hasn’t been that long, there are certain signs you should never ignore.

Ducted Gas Heating

Of all the heaters on the market, ducted gas will require the highest level of attention. Even if you haven’t experienced any of the issues below, it’s always a good idea to get on the front foot. The last thing you want is skyrocketing energy bills, right?

• High Gas Bills: Sudden spikes in your bill might suggest your system is struggling to work efficiently.
  
• Weak Airflow: Blocked ducts or a faulty blower motor can severely reduce airflow.
  
• Uneven Temperatures: If some rooms are warm and others cold, the issue might lie in the ducting or thermostat.
  
• Unusual Noises: Clunks, bangs or squeals are signs of mechanical trouble.
  
• Gas or Burning Smells: If you detect odours, turn off the unit and call a professional immediately.

When it comes time to book your next ducted heating service in Melbourne, make us your first and only call. Our friendly team will perform all the necessary checks and provide you with a transparent service from start to finish!

Gas Log Fires and Space Heaters

In terms of heating smaller spaces, both of these are certainly great options. While they’re generally a little less high-maintenance, there are a number of signs that can appear to indicate that it’s time for professional maintenance.

• Pilot Light Issues: Trouble lighting the pilot? Is it frequently going out? There just might be an issue with either the ignition or gas supply.
  
• Flickering or Yellow Flame: A healthy flame should burn blue. If not, you’ll likely have a combustion issue.
  
• Soot or Dust Buildup: Indicates incomplete combustion or the need for a clean.
  
• Poor Heat Output: If your room’s not warming up like it used to, the internal components might be wearing out.
  
• Strange Noises: Clicking, hissing, or banging could mean loose parts or gas flow issues.

Keep your heater safe, functional, and effective with our affordable gas log fire services.

Split Systems

Split systems are popular for their ability to provide both heating and cooling, but like any appliance, they’re not immune to faults. This is especially true if they haven’t been serviced in a while.

• Weak or No Airflow: If your unit is barely pushing air, there could be a blockage in the filters or an issue with the fan motor.
  
• Poor Heating Performance: If the room isn’t warming up as it should, the issue might lie in the compressor or reversing valve.
  
• Water Leaks: Split systems can leak water inside the home if the drainage line is blocked or frozen.
  
• Unusual Noises: Buzzing, rattling, or gurgling noises are often signs of a mechanical fault.
  
• Bad Smells: Musty or sour smells could mean mould or bacteria have built up in the filters or coils.
  
• Flashing Lights or Error Codes: Many modern systems display fault codes when there’s an internal issue. These should always be assessed by a professional.

If your split system is failing to keep you warm during the winter, a Maroondah Air Services technician can clean the coils, fix any technical issues, flush the drains, replace filters, and restore it to full functionality.

Reach out to us now to schedule a local split system service in Melbourne.

Why Regular Heater Servicing Matters

Beyond obvious faults, regular servicing is the best way to keep your system safe and long-lasting.

1. Efficiency

Dirt, dust, and debris build up over time. The more it accumulates, the greater the chance it has of blocking airways and forcing your system to work harder. During a routine service, technicians will clean fans, ducts, and burners to improve performance and lower gas usage.

2. Lower Energy Bills

In this sense, it’s all pretty simple; a more efficient system uses less power to warm your home. So, if your heater is running inefficiently due to blocked filters or faulty parts, your bills can and will rise significantly. Servicing helps you avoid this by identifying and fixing issues early.

3. Safety

Heaters carry inherent risks, especially if they’re gas-based (the dangers of open flue gas heaters have been well publicised). The good news is that for these appliances, regular servicing often includes carbon monoxide testing and inspections of burners, heat exchangers, and gas connections. This is especially important for older systems and high-use heaters.

4. Preventing Costly Repairs

A failing fan or blocked duct might seem minor now. But left unchecked, they can lead to serious damage. Routine checks allow for early detection, saving you the cost and stress of major repairs or full replacement.

5. Replacing Worn Parts

Components like thermostats, air filters, and burner systems wear out with use. During a service, a technician can spot and replace faulty parts before they cause system-wide failure.

What’s Involved in a Professional Ducted Heating Service?

While no two homes are the same, here’s a general overview of what’s included in a ducted gas heater service:

• Cleaning of ductwork, vents and burners
  
• Fan and motor inspection
  
• Thermostat calibration (including smart devices)
  
• Carbon monoxide testing
  
• Safety and ventilation checks
  
• Filter replacement
  
• Add-on cooling inspection (if applicable)
  
• System efficiency testing
  

We’ll also ensure that your heating system is properly integrated with any smart home or automation features.

Hiring the Right Heating Technician

Not all repair services are equal. Here’s what to look out for when booking heater repairs in Melbourne.

1. Proper Accreditation

If your heater runs off gas, only hire a licensed Type A gasfitter registered with the Victorian Building Authority (VBA). This accreditation means they are qualified to safely handle domestic gas appliances, including ducted systems, gas log fires, and space heaters.

2. Experience and Reputation

A reputable company will have a strong track record of servicing and repairing various makes and models. Look for online reviews, customer testimonials, and evidence of past work on their website, social media, or other outlets.

3. Clear Communication

From diagnosis to pricing, a good service provider keeps you informed every step of the way. You should never be left guessing what’s wrong or what it will cost to fix.

4. Transparent Pricing

Look for companies that offer upfront quotes, optional discounts (like pensioner or multi-appliance deals), and clear breakdowns of costs. At Maroondah, if we’re not on time, you also get $50 off your service.

5. Integrity and Customer Support

A trustworthy repair team won’t push unnecessary repairs or upgrades. They’ll give honest advice and back their work with warranties and follow-up support.

Additional Tips for Long-Term Heater Health

• Maintenance Programs: Consider enrolling in a regular service plan to extend your system’s lifespan and reduce breakdown risk.
  
• Warranty and Insurance: Confirm your repairer offers warranties and carries public liability insurance.
  
• Emergency Availability: During peak winter periods, choose a provider that can respond promptly, especially for safety-related issues.
  
• Ongoing Support: Choose a company that will be there for future maintenance or troubleshooting—not just a once-off fix.

Reach Out to Maroondah Air Services Today

Is your heater blowing cold air, refusing to start, or showing any of the signs listed above? Don’t risk being left in the cold.

With over 25 years of experience, our licensed HVAC technicians can provide a hassle-free split system service, gas log fire service, ducted heating repairs and more. Put simply, Maroondah Air Services is your go-to for fast, affordable, and reliable support.

We back all work with warranties, transparent pricing, and a team of certified experts ready to help. Call 03 9738 2000 or request a service online now!