The Faults We See Most Often
Lukewarm water is by far the most common complaint we're called out for, and it can stem from several different causes — a low refrigerant charge, a failing compressor, or simply a thermostat set lower than the owner realised. Short-cycling, where the unit switches on and off repeatedly rather than running a normal cycle, is the second most frequent issue, and often points to a refrigerant or sensor problem that's worth diagnosing before it wears down the compressor further.
Icing on the outdoor unit is normal to a degree in cooler weather and clears during a defrost cycle, but persistent or heavy icing usually signals low refrigerant or a fan fault. Unusual noise — grinding, rattling or a new humming sound — is rarely something to ignore, since it often means a component is under more strain than it should be.
What Usually Causes These Faults
In our experience, the two biggest root causes are skipped maintenance and coastal corrosion. A unit that's never had a professional service is far more likely to develop a slow refrigerant leak or a loose electrical connection that eventually causes a bigger fault, which is exactly why manufacturers build annual servicing into their warranty terms. Along the coast, salty air accelerates wear on standard components significantly faster than inland, which is why we specify corrosion-resistant parts for every coastal installation.
If any of these symptoms sound familiar, our troubleshooting service is built specifically for diagnosing an unclear fault, while our signs you need repair guide covers the full list of warning signs in more depth.
Noticed one of these symptoms?
Book a diagnostic visit and we'll identify the exact cause before recommending any work.
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