Heating Maintenance Performed Upon arrival system is working and operational. I began my maintenanc on the roof at the package unit. I checked and tightened electrical connections. I inspected the heating components for proper operation and wear. Burners were inspected for proper operation. Flame sensor was cleaned. Condensates lines were inspected for proper drainage. Static pressures and temperature splits were taken. Filter has been checked and does need to be changed, homeowner said he will pick some filters up. Blower housing and wheel was inspected for balance and dust build up. Air supply was measured. Inspected safety switches as well as inspected home for fire and carbon monoxide detectors. Home owner currently has fire detectors down due to fresh paint, reminded to put back up soon for safety. Upon inspection of the package unit I found there to be no form of electrical protection on the unit, recommend adding a surge protector to protect the sensitive components contained