The boiler has gone into it's annual meltdown, and doesn't want to switch from heating to hot water. The result is that it's bloody hot in the house, but there's no hot water. We can get hot water if we let it trickle out the taps , but it's not working properly.
This always seems to happen when this time of year. It's a wee valve that gets jammed. Fortunately we've a service contract. Unfortunately, it's going to be Wednesday before it'll be fixed, as that's the first day that one of us can be in the house to let them in.
Could be worse, at least we've got heating.