Preformed single system heat maintenance on a 2014 Lennox heat pump. I tested all electrical components on he inside air handler. All tested within manufacturer specifications. I did notice some build up on he blower wheel. It could benefit from a cleaning. I proceeded outside to test all electrical components, start and run amps on the compressor. All tested within manufacturer specifications, except for the fan run capacitor. It is failing at 6.5MFd/7.5MFd. I also noticed the unit did not have any type of surge protection. I provided estimates for all cleanings and concerns to be addressed. Client had run capacitor for the fan replaced today. Unit was heating upon departure