Service Call Platinum Client diagnosed system freezing up due to dirty filter and being a little low on refrigerant. replaced filter added 2lbs R410arefrigerant. system operating normally at this time, verified 19-degree temperature drop. spoke to a customer about RGF reme halo and Halo led, customer, asked about humidifiers, quoted customer and provided information for Aa 700a and AA 800 STEAM HUMIDIFIER. The customer is going to talk it over with her husband