I performed a single cooling maintenance on a 2020 airhandler and 2019 410A heat pump system. I checked amps, capacitors, filters, electrical, drains, and safeties. I made some minor adjustments, by request of the customer, to the air flow. I noticed that the airhandler has bit of build up present on the evaporator coil and blower motor. Also, there is growth forming inside of the airhandler. I noticed that the outdoor unit was heavily compacted with dirt on the backside. I rinsed it the best I could with water. I recommend that the unit be broken down and deep cleaned with chemicals. I found that the capacitor has not been changed reading 41/45 on the compressor side. The customer is aware of the capacitor and wants to change it himself. I provided pricing to address the dirtiness of the indoor and outdoor units, and I provided a bundle price if customer proceeds with all cleanings.