Most air conditioning units have no reset button. If any do there would be no standard place for it.
where is reset button on outside unit of American standard hvac where is reset button on outside unit of American standard hvac
There is no reset button on a central air unit, there is a small breaker or fuse box outside next to the unit, it is possible the fuse is blown or breaker tripped.
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If is a 2 stage air conditioning unit. You might want to replace the furnace.
bulllshyt
air conditioning and heater control
your air conditioning
Broke
ACCU
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how to check out the relay in a central air conditioning unit
In short answer, yes. There are many things that will affect the temperature produced by an air conditioning unit, to be honest.