Air Conditioned Room
Man replacing air conditioner in Perth

7 Signs That It’s Time to Replace Your Air Conditioning System

You rely on your home air conditioning system to get you through the seasonally high temperatures that hit Perth during the summer. But lately you’ve noticed that the system isn’t cooling like it used to.

How do you know if you should call a repairman or start considering a replacement? In this blog, we list seven common warning signs that a cooling system has aged or worn out beyond fixing.

1. Unit Has Diminished Air Flow

A significant decrease in air flow either means your filter needs cleaning or your unit’s compressor is on its last leg. Clean your filter regularly to remove debris.

If a cleaning doesn’t restore full air pressure, start thinking about installing a new unit once the compressor gives out.

2. Unit Has Reached the End of Its Lifespan

Once your unit reaches a specific age, you’re more likely to begin experiencing the problems on the list. The typical ducted air conditioning system lasts between 10 and 15 years.

3. Unit Needs a Major Repair and Is Past Warranty

Usually, you can overcome a major repair or part replacement. However, when these serious repairs occur later in the unit’s life, they serve as a warning of future issues.

If your unit needs a complex repair after the warranty expires, start shopping around for a new unit instead of pouring money into a dying system.

4. Unit No Longer Produces Cool Air

One of the most common problems in older or severely damaged units is that they produce regular air levels, but the air coming out isn’t cold. You may experience some warm air during regular use, but if your unit stops producing cool air entirely, consider a replacement.

This symptom may mean your unit has low refrigerant levels. However, warm air production can indicate a serious problem such as a damaged compressor.

5. Unit Routinely Leaks or Produces Excess Moisture

For the most part, your unit should stay dry whether or not it’s in use. If you notice a sudden increase in condensation or an active leak, have the unit inspected by a professional.

When you have a leak, let a professional evaluate and diagnose the cause. Some units may spring refrigerant leaks. Refrigerant should only be handled by professionals due to the health risks it poses.

6. You Notice Abnormal Noises or Odours

Some minor noise and scent changes can simply indicate the need for in-unit repairs. However, if you hear screeching, grinding or grating, the unit likely has parts out of place. If you catch the problem quickly, you may not need a replacement. But if the issue persists or reoccurs, replace the cooling system.

Foul odours usually mean that your unit’s insulation has become damaged or that the ductwork has become mouldy. Have your filter cleaned. If your unit is still smelly, consider a replacement.

7. Your Energy Bills Have Increased Dramatically

If your unit seems to function normally, a major issue may manifest in your energy bill. If you notice a sudden spike, determine the source.

Compare your older energy bills against this one to determine if your unit has become significantly less efficient.

If you notice one or more of these warning signs, reach out to your trusted heating and cooling specialist. Depending on your current system, you may only need to replace the whole system. Or your chosen HVAC contractor may help you determine that a different system type will better meet your property’s needs.

As your air conditioner ages, look for these warning signs that it’s time to move on or get caught in the next heatwave.

For more information about how air conditioners cool your home and which cooling systems work best for homes like yours, browse our blog section.