Solved! Go to Solution.
Most likely one of these has failed, they are not very reliable, especially if they get too warm.
One of the "wet" construction.
I would wash your hands, and any other surface that has been in contact with the liquid.
It could also be that rain water has seeped into the aerial lead sitter at the connection on the rooftop aerial or a damaged section.
After some reading I thought it might a capacitor, but customer services said that the box doesn't contain capacitors, just a hard drive.
Engineer coming on weds so I'll keep you posted.
It has a mains power supply which has electrolytic capacitors. As you have a loss of power, that is the most likely cause,
You are lucky that one has not exploded, as they make an awful smell which hangs around forever, and smells like cat mess.
I think rain water is the most likely cause. The box does contain capacitors but the amount of liquid that could leak from a capacitor is minimal and you describe it as clear water which is unlikely from a capacitor.
I've heard of rain water coming down the inside of the co-ax cable. It's rare but we have had reports of this before. A drip loop wouldn't guard against that of course. Please tell the engineer about this possibility when they arrive.
As a test you could cut the aerial cable and see if its wet inside - only do this if you or the visiting engineer are confident at re-fitting a co-ax plug though. Don't try this if you've never done it before, otherwise you'll be without TV...
Of course you shouldn't use the box if there's any possibility of an electric shock hazard - I'd advise you leave it unplugged and don't use the aerial cable until you've identified the source of the liquid.
Meanwhile, you could put a cup under the aerial cable to see if you can collect any more water if it rains (I'm assuming you can't reach the external TV aerial to pour water over it as a test). You might want to inspect the cable to see if it has any splits before it enters the house where water could run in.
What's the weather forecast looking like?