It could also be that the Steam/Hot Water valve or hose has failed. Try the hot water function shut the valve (knob at the side) open the door if there is water dripping inside then one or the other is leaking. If this is the case Do not use the Steam/Hot water function until it is repaired.
Normal, depending on the amount, when the hot water goes through the coffee and the pressure builds up the excess has to go somewhere when it stops, usually the drain tray, so there is a little steam loss.
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It could also be that the Steam/Hot Water valve or hose has failed. Try the hot water function shut the valve (knob at the side) open the door if there is water dripping inside then one or the other is leaking. If this is the case Do not use the Steam/Hot water function until it is repaired.
Normal, depending on the amount, when the hot water goes through the coffee and the pressure builds up the excess has to go somewhere when it stops, usually the drain tray, so there is a little steam loss.