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Air Conditioning
Air conditioners and cooling: refrigerant, coils, airflow and getting a system ready for a Raleigh summer.
Air Conditioning
Your AC runs but will not cool: a step-by-step diagnosis
How to tell an airflow problem from a refrigerant problem before anyone opens the unit.
Air Conditioning
Refrigerant leaks and recharge: what is legal and what is not
Why a sealed system should never need topping up, and what a proper leak search involves.
Air Conditioning
What a spring AC tune-up actually includes
The checks that matter before the first hot week, and the ones that are just paperwork.
Air Conditioning
A frozen AC coil: why it happens and what to do first
Ice on the indoor coil is a symptom, not a cause — and running the system through it makes things worse.
Safety note. Gas smells, repeated furnace shutdowns, burning smells and suspected carbon monoxide are call-out situations, not do-it-yourself jobs. Leave the building and contact a licensed technician or your utility. Refrigerant handling and gas pipework are licensed trade work.