Aerators run 24/7 and need annual servicing: filter cleaning, diaphragm replacement (3-5 years), and motor inspection. Annual aerator service is available across Delaware, Licking, and Fairfield counties.
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Aerator maintenance schedule for typical Central Ohio ATU systems (Hiblow, Air-Tech, Norweco brands). Annual: clean intake air filter, inspect diffuser stones for clogging, verify alarm-test functionality, check chlorine tablet supply if equipped. Every 3-5 years: replace aerator diaphragms (cost $80-$200 for parts plus 30 min labor). Every 5-7 years: replace aerator motor or rebuild ($200-$500 parts plus 1 hour labor). Annual service contracts run $200-$400 in Greater Columbus and typically include all routine items plus a service log. Some Ohio counties (parts of Delaware, Licking) require ATU systems to have an active service contract on file with the county health district; check before declining service. Failure of the aerator triggers an alarm; sustained alarm (more than 24 hours) typically indicates motor failure or power issue and requires service dispatch. Columbus ATU service-contract value: the typical $200-$400/year service contract pays for itself by catching diaphragm wear and motor degradation early, preventing the larger $400-$800 emergency-replacement bill that comes from running an aerator to failure. Some Delaware County and Licking County ATU permits require a service contract on file; check the original installation paperwork before declining service.