A liquid applying apparatus comprising: at least one application unit (11, 12) including a feeding container (1, 2) configured to contain a liquid, the application unit (11, 12) being configured to apply the liquid to an object; a first liquid-supply container which is a supply source of the liquid configured to supply the liquid to the feeding container; a second liquid-supply container which is a supply source of the liquid configured to supply the liquid to the feeding container; a switch configured to switch a supply source of the liquid between the first liquid-supply container and the second liquid-supply container; a first storage configured to store a supply start time when a supply operation to supply the liquid to the feeding container is started, the supply operation being performed to fill the feeding container with the liquid up to a predetermined supply level; a second storage configured to store supply information including one of supply source information indicating the supply source of the liquid and supply route information indicating a supply route through which the liquid is supplied; a third storage configured to store a liquid level of the liquid in the feeding container at a start of the supply operation; a fourth storage configured to store a supply operation time from the start of the supply operation until the liquid in the feeding container reaches the predetermined supply level; a controller, characterized in that the controller is configured to determine, after the supply operation is completed, a condition of the liquid applying apparatus based on the supply operation time stored in the fourth storage as one of a normal condition, an abnormal condition requiring a repair, and a potentially-abnormal condition that is different from both of the normal condition and the abnormal condition, and determine the supply source or the supply route as an inspection-required spot indicating the supply route that needs to be inspected based on the supply information stored in the second storage when the liquid applying apparatus is determined to be in the potentially-abnormal condition; and a fifth storage configured to store the inspection-required spot determined by the controller. at least one application unit (11, 12) including a feeding container (1, 2) configured to contain a liquid, the application unit (11, 12) being configured to apply the liquid to an object; a first liquid-supply container which is a supply source of the liquid configured to supply the liquid to the feeding container; a second liquid-supply container which is a supply source of the liquid configured to supply the liquid to the feeding container; a switch configured to switch a supply source of the liquid between the first liquid-supply container and the second liquid-supply container; a first storage configured to store a supply start time when a supply operation to supply the liquid to the feeding container is started, the supply operation being performed to fill the feeding container with the liquid up to a predetermined supply level; a second storage configured to store supply information including one of supply source information indicating the supply source of the liquid and supply route information indicating a supply route through which the liquid is supplied; a third storage configured to store a liquid level of the liquid in the feeding container at a start of the supply operation; a fourth storage configured to store a supply operation time from the start of the supply operation until the liquid in the feeding container reaches the predetermined supply level; a controller, characterized in that the controller is configured to determine, after the supply operation is completed, a condition of the liquid applying apparatus based on the supply operation time stored in the fourth storage as one of a normal condition, an abnormal condition requiring a repair, and a potentially-abnormal condition that is different from both of the normal condition and the abnormal condition, and determine the supply source or the supply route as an inspection-required spot indicating the supply route that needs to be inspected based on the supply information stored in the second storage when the liquid applying apparatus is determined to be in the potentially-abnormal condition; and determine, after the supply operation is completed, a condition of the liquid applying apparatus based on the supply operation time stored in the fourth storage as one of a normal condition, an abnormal condition requiring a repair, and a potentially-abnormal condition that is different from both of the normal condition and the abnormal condition, and determine the supply source or the supply route as an inspection-required spot indicating the supply route that needs to be inspected based on the supply information stored in the second storage when the liquid applying apparatus is determined to be in the potentially-abnormal condition; and a fifth storage configured to store the inspection-required spot determined by the controller.