CH works but hot water dribbles

[martinzuma]

I have a Ideal Classic Boiler (NF 50 ?)

Central heating system works fine.

However luke warm water only comes out of tap for a short while before
stopping (same on all taps in house and nothing has recently changed)

Turning taps off for a while and then on again allows taps to flow again briefly.

I First noticed reduced pressure on taps a few days ago,but problem is now worse.

Hot water cylinder is hot and both header tanks are full of cold water.

What I believe to be the hot water supply coming out of the top of the tank is also hot.

Previous occupants had a problem with the cylinder leaking about 8 months ago.

Do i need a plumber or a central heating expert ?

 

[Paul Barker]

air lock, do a google search or a search of this forum.

 

[martinzuma]

thanks

problem fixed (i think) by feeding cold water back into hot system via mixer tap and removing air lock.

 

[ChrisR]

AIr locks don't happen by themselves . Check header tank for sunken dead squirrels etc.

 

[pannierstan]

AIr locks don't happen by themselves . Check header tank for sunken dead squirrels etc.

Or perhaps the ballcock might be sticking
Thats if the Squirrels not playing silly buggers

 

[martinzuma]

header tanks are clear and have no debris in them

Did have a squirrel in the loft once , but it seemed to want to chew up the
wooden ceiling supports rather than throw himself in the feeder tank.

Thinking back I might have closed off the feed for the tank just above
the cylinder , which might have caused the problem.