Aga is smelling of oil why?

Aga may be smelling of oil due to the presence of oil residues from cooking or food preparation. If it's a type of stove or oven, the smell could also come from burnt oil or grease buildup inside the appliance. Additionally, if Aga is used for heating, it might emit an oil smell if the fuel is not burning cleanly or if there's a leak. Regular cleaning and maintenance can help prevent such odors.