Understanding HVAC Systems

Welcome to my blog! My name is Darren. My friends say that I am boring because I love the HVAC system in my home. I am not an HVAC professional, I just love the gentle hum of my air conditioning system as it gently brings the air in my home to the perfect temperature. When I was a kid, my family couldn't afford air conditioning so I spent many summers sweating away and feeling miserable. I vowed to myself then that when I grew up, I would have the best HVAC system money could buy. I hope you find my HVAC blog useful.

Three Signs Your Air Conditioning Compressor Is Ready For The Tip


Australia is midway through its summer, and it's not surprising that the demand for all air conditioning services peak at this time of year as the reality of hot summer nights bites restless sleepers. You have only been in your home a few months, but you are starting to feel dread about the state of your property's air conditioning system. Something is not quite right, so you're trying to decide whether to call in an air conditioning repairer now or wait. A failing compressor in your air conditioner needs urgent attention, and these are the signs that this vital AC part is in its final stages of life.

Air conditioner blows warm air

The last thing you want to introduce to your home in the heart of summer is more hot air, but if the compressor is dying, this is exactly what your air conditioning unit is doing. The compressor moves the refrigerant through your air conditioning system. If it loses pressure, it cannot move the refrigerant, and that means the system cannot cool the air flowing through it. The presence of warm air is a strong indicator that the compressor is not turning on.

Air compressor is not turning on

One reason why the air compressor is not turning on is that you have a dirty condenser coil. The condenser coil absorbs the hot air produced when the air conditioning unit is running and releases it outside your home. When a condenser coil is dirty and clogged, the compressor needs to work hard to move refrigerant around the system. This extra hard work can cause the air compressor to trip the circuit breaker in your electrical power box. The lack of power stops the air compressor from turning on.

Vibrations in outside unit

If your air conditioning unit seems clean inside, then go outside and watch your external air conditioning unit which you switch your AC on. You are looking for obvious signs of vibration. These vibrations are caused because the compressor is trying to get the refrigerant moving around the system, but is unable to do so due to impending failure. You will also hear a loud rattle noise as the compressor struggles to kick into life.

When you suspect your air conditioning compressor is on its last legs, call the repairman to replace it as soon as possible. The faster you do so, the least likely you're going to be stuck with no air conditioning when the really hot days of summer strike.


5 January 2018