GSHA Services, LTD performed an annual air-cooled generator tune-up on a Generac home standby generator in Capron, IL. Our generator technician changed the engine oil and oil filter, replaced the air filter and spark plugs, load-tested the battery and installed a new Interstate Group 26R battery, checked the controller for fault codes, verified the transfer switch operation, and ran the unit under load to confirm it is ready for the next power outage. Regular maintenance keeps your standby generator reliable and protects the manufacturer warranty. Need generator maintenance, a tune-up, or generator repair in Capron, Belvidere, Poplar Grove, or Boone County? GSHA Services services Generac, Kohler, and Cummins home generators across northern Illinois.