Smelly toyo stove

After not using our Toyo stove for a few years we recently had to start using it again due to a recent local emergency with our power utility. About 6 months prior to turning it off we had theunit rebuilt, and it was in fine working order when we shut it down. Since turning on the valve and plugging it in this week, we have had a distinct fuel oil smell permiating the house with no sign of fuel spillage. I have ispected the fule liken and fittings - no leaks. I have take the front shroud off and confirmed there is no fuel leakage visible inside the assembly. Would you have any suggestions?