I have an 8 year old Bradford white natural gas power vent 75 gallon water heater. Recently I noticed a drip coming out of the bottom. I took the burner covers off and inspected the bottom of the tank. It doesn't look rusty. I then took the thermostat cover off and noticed that the insulation in that area is wet. This area is probably 6" or so above the bottom of the tank.
Then I pulled the wire protector grommet out of the hole on a black wire going through the jacket (the hole right above the gas line in the pic). Once I did that a fast drip developed from that area. The wire comes out of the jacket and is connected to the burner controller box that the gas line ties into.
I think this is the thermostat sensor that has a penetration through the tank wall or something to that effect. I believe that it's seal may ave gone bad causing the drip. Is that possible and if so how do I fix it?