DRAIN LINE IS CLOGGED CLEANING WITH NITROGEN Service call on 09/20/19 on arrival connecting my aurora tools I found E7 error codes multiple times happened in system is condenser drain line is clogged explained the customer gave quote for customer quote is not accepted by customer I call Alex he talk to the customer gave customer discount customer sign new service agreement with us cleaning the drain line with nitrogen vacuum the drain line tested with water checked electrical connections checked voltage and amps checked air filter is bad condition I recommended air filter needs to be replaced on time checked all other electrical connections unit operating normal at this time. I gave customer right filter size also customer needs fallow up for heat tuneup when he is ready with the filter collected $548 on C.C on file for 2 geo system annual service