Customer showed location of their boiler explaining how they haven't had any issues with the system so far. Inspected over pipe connections which were clean properly sealed no signs of leaks. Checked through system error history which they have not had any issues in this year. Electrical connections were clean tight and secure. Expansion tank was operating properly at this time water pressure at 13.6 within manufacturer specifications. Spoke with customer about surge protector for the system at this time declined. Customer also explained how he cleans his own dryer vent so no option was provided.