In which I am a bear of little brain.

[davidgillon]

Me, Last night: It's bloody freezing in here!

Me, this morning: It's not bad, but still colder than it should be. Maybe I should check the central heating?

Central Heating: Look at all my pretty blinkenlights!

Me: It's probably the water pressure, I'll need to top up the system, but I need to warm up first

So I go put the fan heater on in the living room until the room is nice and toasty and I warm up

Warmed up, check the pressure: 0 Bar.

So I turn the awkward little knob underneath that lets water into the system (not the nice big handle next to it that doesn't) and fill the system to 2 Bar. Turn the system on, blinkenlights keep flashing

Me: I'll give it quarter of an hour to sort itself out

Quarter of an hour passes

Central Heating: Pretty blinkenlights!!

Me, still cold: Hmm, that big red blinkenlight says 'reset', it couldn't be? Yes, it's also a button.

Me, after pressing the reset light/button and an obvious restart: I'll give it quarter of an hour to sort itself out

Another quarter of an hour passes

Central Heating: Pretty, pretty blinkenlights!!

Me, still still cold: Bugger, must be something -- oh, you idiot!!!

Walk into still toasty living room, pick thermostat up and carry it into kitchen

Central Heating: Oh, wow, it's cold in here, hang on a minute and I'll get that sorted

*headdesk*