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Posted On: July 20, 2023
I have a 1900 sqft house and I rent the extra rooms out, I have central AC and I've noticed it struggles to keep the house colder than 15 F below outside temp.
One of my tenants regularly sets it to 70 when it's over 90 degrees out and it causes the AC to run all day without cycling off.
They also regularly open their window with the AC on which also makes it run for a long time.
The internet is giving me conflicting info, some sources say modern AC units are completely fine running nonstop, and other sources say it will damage the unit.
Question from user idiutt at AirConditioners at reddit.
Answer:
Around this time of year most run at least from 9am to midnight.
They are made to run continuously.
They are machines and don't get tired, just eventually get old.
Yes, it might affect their useful life slightly but if they don't run, they don't dehumidify so they are sized to do so and while some die early, I would say 90% or more live 12-15 years and are killed by planned obsolescence.
Answer from user skankfeet at AirConditioners at reddit.
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Feb 18, 2025
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Feb 18, 2025
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Feb 18, 2025
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