Upon arrival unit was off. Turned unit on and it fired but was making a lot of noise. Saw water pooling around the base of the boiler and took the top of the boiler off to look for where the water was coming from. Found both seams of the boiler were leaking externally. Also looked into the boiler chamber and found the inside of the boiler had water in it. Opened up the boiler door and had water pour out from the combustion chamber. Water is leaking inside of the boiler and making it hard for the boiler to establish a flame. Left the burner and boiler off. Took pictures for a replacement quote.