Hello! I have a problem with the shower, hot water does not come out, but only from the shower, toilets and so on if it goes out without problems, in addition the shower drips constantly, so that hot water comes out of the shower I have to open the hot water tap of the sink and keep it open so that it comes out hot from the shower and I cannot regulate the temperature since when opening the cold of the shower it already cools completely, it is worth mentioning that I have a kruger step heater. thanks for your advice or help