I arrived at our clients home to preform a single system cooling maintenance. I went through and answered Mr Obryan’s questions regarding the maintenance and what we provided in the cooling and heat in services. We first proceeded into the attic and did a visual inspection on the AirHandler. I then went outside and began to test all the electrical components on the outdoor heat pump. I first rinsed the outdoor coils with water. After that I found several components with visible signs of failure and also were reading close to failure according to manufacturer specifications. I went back into the attic and checked the temperature drop at the air handler. Mr OBryan had several windows and doors open when checking refrigerant pressures and temperatures but I was still getting a 17° drop. I went back into the attic and tested the electrical components for the AirHandler. I found another compromised contactor and a capacitor that failed my test today. I showed all my findings to our client