IBC combi boiler maintenance and inspection Performed flush on heat exchanger, found moderate buildup, nothing concerning. Cleaned condensation trap, large buildup inside but again nothing concerning. Performed Combustion analysis as per manual to determine if heat exchanger should be disassembled for cleaning. All readings were well within spec and system is burning clean and efficiently. Customer stated there was a loose wire to the ventor motor but he has it fixed with a ziptie to ensure proper connection. Was very gentle around that part of the boiler as i did not want to cause any problems and cause a lack of heat or hot water Found no problems or concerns during maintenance, boiler is in good shape at this time.