AC problems

Twelve ways an AC fails in this heat

What each one feels like in the house, what usually causes it in a Houston system, and what a proper fix involves.

Whatever it is doing, from a hum and no air to a system that quit outright.

Running, blowing, and the house is still 80. The usual causes, in order.

No cooling in July with somebody elderly, ill or very young in the house is not a tomorrow job.

When the system is past fixing, what a new one involves and what to insist on.

What a real tune-up includes, and why a Houston system needs one before the heat arrives.

The two or three cold weeks a year, when the heat side you never think about has to work.

For the room the central system never reaches, the garage, the workshop or the addition.

In a Houston attic the ducts carry the cold air through the hottest space in the house.

Worth doing in some houses and a waste of money in others. How to tell which you are.

When the system is fine and the thing on the wall is the problem.

Low on gas is never the diagnosis. It is the symptom, and the leak is the job.

The small electrical parts that fail first, and the one check that tells you which.

Cool but clammy, musty when it starts, or dust that never goes: the air side of the system.

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