Performed QA on Trane Gas Furnace/Heat Pump system. Completed checklist form in system. Homeowner had concerns about the REME and the Humidifier. The REME was wired incorrectly so it was not working. Also had to rewire the humidifier. Tested the humidifier and it was running and did not see any leaks, which the homeowner was concerned about. They are also having issues with the Wifi on the thermostat. They said they constantly have to reconnect to the Wifi and every time they use the app it is showing offline. When I arrived the thermostat was connected to the Wifi. Reconnected the Thermostat to the wifi and it was working from her app. Need to follow up with homeowners before the weekend to make sure it is still working properly. May need to call Trane to find out what could be causing this issue.