Jake Kring. 07-05-2024. I arrived for a previous customer no cool call on a mini split in the book room in the back yard. The homeowner showed me the location of the system and how it’s not operating. I inspected the system and quickly found that there was a large wasp nest built on the electrical connections that send power to the indoor head unit. After I removed the debris on the wire I found the communication wire to be a little corroded and causing the system to not cycle on. I cleaned the connection and tried to dry off the wasp spray and tested the systems operation. Once the system cycled on i found the refrigerant pressure and temperature to be running at 15 deg superheat and the system to cycle on in high cooling mode quickly. After I reassembled the system I should the homeowner the issue and we spoke about trying to keep the wasp out of the outdoor unit. This system is running well at this time.