Have HVAC Questions? Ask an HVAC Expert for Answers
Your unit may be doing all t can just due to age is not keeping up.
1.What did onsite tech say?
2.Is air flow as strong as it normally is?
3.Is the large copper line cold and sweating between units?
4.Do you have a thermometer to check difference in return and supply air?
5.Do you have access to Freon gauges so we can check operating pressures?