Short YouTube troubleshooting clip (Derek Cole) advising homeowners about an HVAC unit that cycles on and off. Speaker suggests checking thermostat mode and temperature, inspecting/changing a possibly clogged air filter, and notes other possible causes (low refrigerant, clogged drain line). If basic checks don’t fix it, call 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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