For this call, we performed two super tuneups. Upon inspection, one of the two units was low on refrigerant. We gave homeowner the option to have a leak search and try to mitigate the issue, adding refrigerant and see how long it will last, or considering a system replacement because of refrigerant type and condition of the unit. We were unable to detect the leak after over 30 minutes of leak detection. Homeowner opted to add some refrigerant and see how long the refrigerant will last cooling and heating the home and call back if they start to have issues to leak search again and find the curative answer. All components within the second unit were working within heating and cooling spec limits of the data ratings. Thank you for choosing Comfort Experts, have a great day!