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Apr 14th, 2025
Ducted Heating System

As summer comes to a close and the autumn weather takes hold, many Melbournians are already turning to their heating systems for warmth and comfort. Unfortunately, not everyone’s central heating will be functioning at its best.

Sound familiar? If you’ve noticed issues with the performance and output of your ducted heating system, we’re here to outline five urgent signs that it’s time to book in a service. From obvious to subtle, we’ll cover everything that you need to know.

Why Ducted Systems Need Servicing

Ducted heating systems are made up of several components, and like any complex system, wear, tear, and strain placed on the components all have the potential to cause issues over time.

Unlike an electric wall heater or a standard wall mounted split system, ducted heating is more complex to install and therefore requires more extensive maintenance. This is why servicing is so important.

A ducted heating service is the best way to catch these problems early, as well as keep the system running at peak efficiency with a reduced risk of breakdowns. A well-maintained system also runs more efficiently, which helps lower your energy bills and extend the lifespan of the unit.

Without professional attention, even something that seems minor can quickly escalate and end up costing you a pretty penny. For many Melbournians, the result is an alarmingly high energy bill that catches them completely off-guard.

5 Signs to Look Out For

It’s not always that easy to spot technical issues with your ducted system, but there are many signs that you need to be aware of. We’ve highlighted five below:

1. Reduced Airflow or Weak Heating

Noticed that your system isn’t blowing the same level of warm air as normal? It’s likely that something is affecting the airflow. Blocked ducts, dirty filters, or issues with the motor are often the cause of this problem.

During a service, a technician can quickly check for obstructions in the ducts, clean or replace the filters, then inspect the fan or motor to make sure your system is working at full capacity. If airflow is still lacking even after these steps, it’s important to book a full inspection to prevent the issue from getting worse and affecting the whole system.

2. Strange Noises Coming from the System

Unusual noises from your ducted heating system are a common sign of an underlying problem. Whether it’s rattling, buzzing, or humming, it’s a good idea to get these noises assessed by an HVAC professional. This is because they’re often an indication that parts inside the system are either loose or malfunctioning (such as a faulty fan or motor).

If you’re hearing strange sounds, we recommend that you don’t wait for the issue to escalate any further. Get on top of it and call in a professional who can identify the cause and fix it before it leads to more costly repairs.

When it comes time for your next ducted heating service, we’re the team to call. With over 25 years of experience, Maroondah Air Services is here to keep your home or business cosy.

3. Uneven Heating Across the Home

The biggest selling point of ducted heating is that it provides uniform warmth throughout the house. So, if you’ve begun to notice that some rooms are colder than others with no obvious explanation, chances are there’s an underlying issue with your system. It could be blocked ducts, leaking vents, or even a malfunctioning thermostat. In whatever case, it’s a smart idea to get it inspected.

A technician will be able to safely assess the system’s ductwork, check for leaks, and make sure the thermostat is functioning correctly.

4. Foul or Musty Odours

No one likes a foul odour, especially when you’re just trying to get a little extra warmth at home or work.

If smells are wafting from your ducts into your property, this is a clear sign that your heating system needs attention. The deeper cause behind this musty or mouldy smell could actually be either moisture or mould that’s been growing inside your system. A burning smell, on the other hand, may suggest that your motor is overheating or malfunctioning.

If unpleasant odours are disrupting your day-to-day life, arranging a service is a safe bet. A licensed technician will be able to safely clean out your ducts and make sure there are no dangerous issues lurking inside your system.

5. An Increase in Energy Bills

Although energy bills are up across the board (not counting government discounts), a dramatic rise could be the result of an issue with your ducted heating system. Why? An inefficient system will naturally work harder and require more energy to heat your home. This increased energy consumption is then likely to show up on your next energy bill.

So, if you’ve noticed a spike in your heating costs, it’s time to book a service.

Additional Signs to Monitor

Sometimes, the warning signs may fall outside the five we’ve already listed. With that in mind, here are a few other issues that could indicate your ducted heating system needs attention:

Failing heat exchanger: Cracks or corrosion in the heat exchanger can lead to dangerous carbon monoxide leaks. If your system struggles to maintain temperature or you notice soot around the unit, get it checked immediately.

Malfunctioning thermostat: If your settings aren’t responding properly or temperatures fluctuate unpredictably, faulty wiring or sensor issues could be to blame.

Zoning feature issues: If certain areas of your home aren’t heating properly while others are fine, there may be a problem with the zone dampers or controls.

Physical damage: Rust, cracks, loose components, or deteriorating ductwork can reduce efficiency and affect air quality. Addressing these issues early can prevent costly repairs and extend your system’s lifespan.

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How Often Should I Arrange a Service?

Even if there aren’t any obvious issues, it’s recommended to have your ducted gas heating system serviced at least once a year. Ideally, this should take place in the autumn or winter months, as this is the time Melbourne will experience cold weather that generally lasts from April all the way to November.

If your system is older or used frequently, a bi-annual check-up may be beneficial to catch potential issues early. However, if you’ve already noticed an increase in energy bills, unusual noises, strange smells, or inconsistent heating, it’s best to schedule a service sooner rather than later.

What Should I Look for in a Heating and Cooling Company?

Knowing that you need to book a service is one thing, but finding the right HVAC technicians is another task in itself. Of course, you’ll always want to choose a reliable company with the right expertise.

Here are some factors to consider as you search for a heating and cooling service provider in Melbourne.

Licences and Accreditation

Any HVAC technicians you hire for ducted heating repairs and servicing must be fully licensed and qualified to work on these appliances (including specific training for gas). In Victoria, technicians should hold relevant gas servicing accreditations, such as Type A Gas Appliance Servicing qualifications. They should also be registered with the Victorian Building Authority (VBA) and other relevant regulatory bodies.

OH&S Compliance

Working with heating systems often involves dealing with hard-to-reach areas that are dangerous and therefore unsafe for the average person. So, as you look for a servicing company, make sure they adhere to Occupational Health and Safety (OH&S) requirements. A reputable company will ensure that all safety procedures are followed, protecting both their workers and your property.

A Clear Track Record

It’s essential to partner with a company that has a proven track record of providing quality service. Check for reviews or ask for testimonials from past clients to gauge their reliability and expertise. Companies with years of experience in the industry are more likely to deliver excellent results.

Specialist Expertise and Experience

Whether you have a Daikin, Rinnai, or another brand of ducted heating system, it’s important to work with technicians who have specific experience with your model. A technician familiar with your unit will be able to perform efficient repairs and know what to look for in terms of common issues.

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Clear Quotes and Communication

A trustworthy company will provide a clear and transparent quote before any work begins. Be wary of companies that provide vague estimates or surprise you with hidden costs later on. Look for a company that communicates effectively, so you’re always in the loop about what’s being done to your system.

Offers and Discounts

Many reputable companies offer special deals, such as discounts for referrals or pensioners, which can help reduce the overall cost of servicing. Be sure to ask about any available offers to make your service more affordable.

Integrity

Integrity is at the heart of any trustworthy business. Look for a company that operates with honesty, providing clear information and sticking to agreed prices and timelines. Companies with strong ethics are more likely to deliver quality service that meets your expectations.

What Happens if You Don’t Get Your Heater Serviced?

Skipping regular maintenance can lead to inefficient performance, higher energy costs, and even safety hazards. In Victoria, it’s not just advisable to service your heater – it’s a legal requirement for gas appliances.

Failing to service your system could lead to dangerous issues, such as gas leaks or carbon monoxide poisoning. A professional service ensures that your system is running safely and effectively, reducing the risk of hazards in your home.

If you’re unsure, play it safe and call us for a professional for a ducted heating service in Melbourne. We can also undertake a split system service, a hot water service, a gas log fire service, and much more.

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Book a Ducted Heating Service Today

If your ducted heating system isn’t working as it should, our team can quickly diagnose the issue and repair it for a competitive price. We’re able to offer all sorts of ducted gas heating repairs, including:

  • Thermostat repairs and replacements
  • Ignition system repairs
  • Fan motor repairs and replacements
  • Ductwork repairs and sealing
  • Gas leak detection and repairs

Without help, you can remain warm, cosy, and free from annoying issues like hefty power bills, strange noises, or inconsistent heating. We also operate with honesty and integrity, offering honest advice and high-quality workmanship from the moment the service begins.

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