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What are common problems with the heating and air conditioning installation?


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Alex’s Answer

Drain line issues tend to be pretty common. Either the unit isn’t pitched properly towards the drain line, or the unit is a different height causing less drop on the drain.
Refrigerant charging is another issue. If the new system isn’t dialed in to the proper subcool or superheat it will not operate the way it was intended to.
Just in general cutting corners. Not pulling a proper evacuation, replacing/flushing copper line sets, not replacing filter driers, etc.

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Austin’s Answer

Generally speaking, installing and sizing a new unit should only be done by certified professionals. Although if there are no concerns or issues with the current size or setup, the new unit should be the same size to avoid sizing issues. A lot of common problems are wiring issues, comfort issues, or refrigerant issues. When a new unit is installed, there are so many things you try to remember to do and the little things go unnoticed and cause callbacks. These are just a few of common problems with an installation.

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Christopher’s Answer

Not enough tech who know what they are doing. To many hacks doing bad work and teaching helpers wrong.

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Mohammad’s Answer

Duct and making sure the system has proper air flow. You’d be surprised how many units get swapped out but the returns or supply’s are never adjusted.


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