A gravity-fed grill/smoker combines charcoal heat with electronic temperature control and moving parts, so failures often involve electronics and sensors rather than the cooking chamber itself. Common problems include control board faults, inaccurate temperature probes, fan/damper issues, and hopper or feed mechanism wear that affects fuel delivery.
Repair is usually sensible when the body is sound and the issue is a replaceable probe or controller, especially if you rely on the unit for weekend cooking. Replacement becomes more attractive when multiple electronic components fail repeatedly, or when heat management becomes unreliable and you can't hold steady temps-consistent control is the main value proposition.
Because outdoor storage and weather exposure can accelerate failures, consider how well the unit has been protected; rust and water intrusion often tip the decision toward replacement.