Does anyone have access to a repair manual, or have you taken this apart and can tell me what to look for? Liquid does not transfer from the reservoir area to the boiler- the flow path is clogged, somehow. Is there a check valve of some sort in there, or is this an open path that is simply clogged? I've 'descaled' with vinegar several times, including pouring into the boiler from the hose outlet side (since it won't flow through the inlet side), but no luck. Hate to spend the money to ship to a repair center- between shipping and the cost of the repair, I could buy a new one. But, if it's going to fail as quickly as this one did, why buy another and reward them?