We have an emergency cover, they sent an engineer around today, but turned out he did not really know much about heat pumps. The insurance company told we would have to wait till Monday, they could not find anybody with a knowledge of the heat pumps today.

Our air source heat pump is Mitsubishi Ecodan. The outside unit is working, upstairs everything seems to work fine, too, but there is no hot water and radiators were getting slightly warm for some 10 minutes and then went cold. They do not get warm any more, though. what could be wrong? Does any body know if we could do some thing ourselves? I am quite desperate, because it is getting really cold.