Short single-speaker YouTube clip (Derek Cole) listing common AC issues and simple checks for homeowners. SPEAKER A names possible causes — faulty thermostat, low refrigerant, clogged air filter, clogged drain line — and advises viewers to first verify thermostat mode and inspect/change the air filter before calling a professional.
It could be a few different things. Faulty thermostat Low refrigerant could be a clogged air filter. It could be a clogged drain line. The simplest thing for you to check is the thermostat and the air filter. Maybe you're in between seasons. You haven't changed it over to heat from cool, or you haven't changed from cool to heat. So make sure mode on a thermostat is set to the right temperature you want. And then also check your air filter. Make sure it's not clogged. Make sure it's changed out on a regular basis. Check that first. If beyond that you're having trouble, you probably need to call professional.
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