Pump fuse blowing on 2011 Trident

Can anyone help please?
I am the new owner of a 2011 Trident and, following a drain down over winter, I could not fill the water tank via the Whale socket. After a bit of faffing I discovered that the 10amp Pump Fuse had blown which also controls the inlet line solenoid valve. Fuse replaced, tank filled, but when I switched the pump on to bleed and fill the system, after a short time of running with (no water coming from the taps) the fuse blew again.
I replaced the fuse and tried again and managed to get some water out of the tap (on the cold side I think) but when I moved the tap to fill the water heater the fuse blew again. The pump sound is variable and it seems to be under load, slowing down just before the fuse blows.
I assume the pump is a submersible one so I’m going to have a peek in the water tank via the screwed access plug in the base to see if there is anything obstructing the pump (it worked fine last year) but has anyone experienced this before and have any ideas as to the problem?
Many thanks.

Thank you for the replies - I’m not sure that the impeller on mine is stuck as it did manage to pump some water (albeit briefly) but there is certainly some damage as it is under load. Perhaps I did not drain the system down correctly?

I hope it is a submersible pump as I don’t have a clue where it is if not! It is not in the void under the drainer and the cold water pipes seem to go through the floor. I will update this thread when I manage to get the van on some ramps and have a closer look underneath.

Hi, I can't speak of new fangled submersible water pumps on a Trident but on our 2007 model (without a submersible pump or water heater) its located under the large cupboard floor beside the rock n roll seat. There was a posting here a while back which may help. Try searching 'Location of water pump on Trooper T5 2007' I would've posted a link but failed miserably. It takes about 10 min.

Maybe just maybe this time it'll work?
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Thank you for the information - we have just returned from a dry (in more than one way) trip away so I now have time to do more investigation. Autosleeper do try to make things difficult! I’ll update the post when I find something out.

Hello all, thank you for your replies and I’m pleased to say that the pump problem has been sorted - unfortunately not by me but by a dealer. The pump had seized and has now been replaced. It was a submersible pump and I was told that it can be replaced from inside the tank without taking the tank off. If it happens again I’ll be having a go at doing it myself although getting under the van may be a little tricky!
I’m not sure what caused it to seize other than residual water being left in it over the winter. I thought I had fully drained the system but obviously not!