No water coming out of tap

[snowballing]

Episode 1. No cold water coming out of bathroom tap (mixer tap). Hot water working fine, all other taps in the flat working fine. Left it and thought nothing of it. Woke up the next morning to find the tap was running - glad I didn't have the plug in the bath or it could have been a flood.

Episode 2, today - again nothing coming out of the cold water tap, regardless of whether it's through the tap itself or through the shower attachment.

Anyone got any ideas... currently can't have a shower as the hot water alone is too hot. And scared the tap will turn on again, it used up a lot of water last time according to my water meter :(

does the water come from a loft tank, or is it at mains pressure? i.e. if you put your thumb over the spout and turn the tap on, can you hold back the flow?

when you turn on the tap, does it have a quarter-turn lever or knob, or hot and cold knobs that rotate several times between fully off and fully on?

It isn't a joystick tap, is it?

When the cold bath tap stopped working, did the basin cold tap still work?

It's at mains pressure.
The knobs usually rotate several times - when this happens, I can turn it but only a fraction of what I can turn the hot tap.
Just a normal round tap, not a joystick tap.
Yes the cold tap in the basin (and everywhere else) still works.
If it turned on by itself last time, presumably that means it is a pressure thing or am I talking out of my behind?

Tap a bit like this (but more bathroom-like)... tap

A thrilling update...
Left tap in 'on' position (or as far turned to the right as it would go).
Now when I turn it off and on, a dribble of water comes out. If I turn the tap as far as I can, water slows then stops. If I turn the tap towards being off (without actually being off) more water comes out.

Find isolation valve. Turn off water. Remove tap. Fit new one. I expect that will sort the problem out if it's the only tap in the house giving you gip.

That tap is very simple to repair. It probably has a washer on it, and the jumper has come loose. Or it might have a cartridge, and the hairpin clip has come off. Either way, it fan be quite easily repaired if you have some spanners.

If you want to have a go yourself, start by looking at the pipework under the tap. There might be a service valve that you can turn off with a large screwdriver in the slot, a quarter-turn. If not you will have to turn off the main stopcock.

Then pry out the cap from the top of the tap, undo screw, pull off knob, undo the largest nut, look for something that had come loose.

You will need to clean all the parts with a nylon scourer so they move freely, lubricate with silicone plumbers grease, put plumbers PTFE tape on the screw threads before reassembly, fit a new washer while its apart.

I would take it apart before going to buy any replacement bits needed.

There will be a video on Videojug.

Or ask friends and neighbours for recommended experienced local plumber, who will fix it with his eyes shut.

Don't use an advertising recommendation website. Don't call a non-geographic phone number.

Thank you - will have a go at that tomorrow. I was able to get enough cold water out of it for a non-scalding shower, by only turning it a little way on.

It may be an easy fix - I'm quite happy to plumb, and have all the relevant bits. But if you can't fix it by taking it apart, it will probably be cheaper to buy a new one than pay a plumber to fix it. Fitting taps is very very easy. Easier than taking them apart.