No pump, no pressure - no problem?

[Jameswren]

Hello

My pump was making a ticking noise that got louder when I turned it up but that's now stopped (assume its completely failed rather than fixed itself). I also have no pressure in the system that drops from 1.4 to zero in around a week.

Other than those issues. I don't have any problems - hot water heats and the rads heat.

Should I just ignore the issues? Or am I damaging something else on the system by leaving them?

 

[swbjackson]

If the hot water and central heating works then the pump must be working. The pressure loss is of more concern. You must have a leak or faulty pressure vessel.

 

[Jameswren]

The drop in pressure seemed to be after the ticking stopped, so I assumed the two were related.

I can't find any leaks - no drips and no damp stains. How else can I locate one?