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After a long hot day, you came home to switch on the air-con, only to find out that your air-conis giving out hot air.

“Huh? Again?”

You have done regular maintenance yet your air-con system is still giving you issues. It may be a telltale that your air-con needs to be replaced.


In a perfect world, your unit would only need to be serviced once a year to guarantee that it is properly maintained, clean, and in good operating condition. Is your trusted air conditioner costing you more money than it's worth?

Typically, you should budget for one major repair or part replacement. However, if major repairs are needed later in the unit's life, they serve as a forewarning of potential issues.

On occasion, you may require additional servicing or repair. If, on the other hand, your air conditioning system is always in need of maintenance and repair, you may have to call it quits - replacing your air conditioner may simply be the most cost-effective and efficient option.

If your unit requires a difficult repair after the warranty has expired, it's time to start looking for a new one rather than pouring money into an old one with a short shelf life.


Even though your unit appears to be running correctly, one of the most obvious signs of a serious problem is a spike in your energy bill. Is it abruptly rising and you're puzzled as to why? Conduct a 'energy audit,' and look into other factors that may have led to an increase in your energy costs. This can help you determine whether an increase in energy usage is due to your air conditioning.

If all roads lead back to your unit as the source of the extra electricity, you must determine why it has become so inefficient. Is it conceivable that your air conditioner is overworking? Reduced cooling capacity will result in higher energy bills as your unit struggles ineffectively to maintain the correct temperature.

Clean the air vents, change the filters, and then look for lumps or knots in the condensing coil. it might be an energy loss simply because it has slowed and is reaching the end of its useful life.


One of the most common problems with older air conditioners is that they simply do not cool or heat. It may still produce normal air levels, but the air isn't as cold or hot as it should be. During normal use, you may notice some warm air on a cold setting occasionally, but if your unit stops producing cool air completely, it's time to check, and vice versa for heating. It might be an indication of low refrigerant levels. Warm air production while the system is set to cool, on the other hand, could indicate a major issue, such as a faulty compressor.

Temperature fluctuations are also a sign of concern. At the temperature you've set, your air conditioner is expected to maintain a steady temperature. When certain rooms become chilly zones while others don't appear to get any cool air at all, it might signal that your air conditioner is on its last legs. If your unit is generating hot (or inconsistent) air, look for air flow obstacles in the filters, valves, condensation drains, and coils. However, be aware that a new device may be on the way.


Like everything else, it has its lifespan. Sure, your air conditioner is well maintained. It could only extend the lifespan for a little bit. It will still need to be replaced where it is due.

If you were to constantly repair your air conditioner system, it will actually cost you more than replacing it to a new system. For example, your fan coil unit is faulty, you only change it and not the condenser. In a few months or a year down the road, your condenser may give up too. Then you may have to change the condenser too. In this case it will actually cost a lot more than you change the whole system.

If you are unsure of whether or not your system needs to be replaced, feel free to contact your air-con technicians. They could recommend to you what is the best solution.

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