I was called to a home to repair a malfunctioning air conditioning system. Upon arrival, I found that the system had a clogged filter and was also 0.70 lbs low on charge. I replaced the filter and charged the system, and it is now cooling and will run to catch up the rest of the day. I also noticed that the internet was not working correctly in the home, so I had to disconnect the Nest stat from the internet to get it to work. The customer will need to connect the stat to the wifi when it is fixed.