Replacement warranty. South side unit thermostat programming allowed for overcooling for dehumidification. Noth side set to standard dehumidification while south was set to maximum. Masao explained it was a recurring thing but had never thought to call us before but this time noticed it was a bit colder and the system seemed to run longer. I explained the overcool to dehumidify concept and that it was possibly that it ran because of the higher humidity due to rain yesterday. Set south side thermostat to standard dehumidification setting and confirmed both thermostats were on same setting with 0F overcool allowance to dehumidify.