Recent content by J80FAB

The quality control tag is dated 1976 & belongs to the boiler. The front panel on the boiler clearly says 'Potterton Netaheat 10-16 Mk II'. Looks like a slight misunderstanding in the thread. By 'higher' I meant the height of the actual tank & not the height of the level of water :oops:

I didn't know what F&E meant either :oops: but it soon came to light after reading stuff on the web that it's an acronym for 'Feed & Expansion', ie. the smaller tank that feeds the central heating system. Thanks for clarifying your problem jonblair. It's a good thing I asked :!: :!: ...

If the F&E tank is in the loft, the cold water storage tank surely cannot be any higher :!: Isn't the usual set-up: both are in the loft (at the same level) or F&E is in loft whilst cold storage is sited lower down (for example bathroom) just above the hot water cistern.

The boiler is 29 years old & that's a fact. There's even the original tag still on it with the date being 17 November 1976 though I think it may have been installed early 1977. I did state that the boiler was serviced 2 years ago, April 2003 to be precise. During the service the engineer even...

Many thanks for this info which may prove to be the solution to this problem :o Just to make sure, your running water was definitely coming out of the expansion pipe for the F&E tank and not the cold water storage tank ? :? If the heat exchanger pipe is at fault then a replacement...

Not sure where this would be exactly. If you click on http://www.gasconnect.co.uk/central/conventional.html is the 'teeing' point (t-junction) illustrated as just being under the pump in the central heating diagram ? The boiler has not been neglected & is in very good condition for its age...

That is not an option. The boiler works in that it heats the house & provides hot water. There may be a perfectly good reason as to why the pipe is letting water run and this may only cost a small amount to fix. The system is 'pumping over' but the cause of it in my opinion cannot be an...

Configuration cannot be wrong ??? Expansion pipe was not directly over F&E tank cover hole. Thus water from pipe ran across the cover & ended up on the ceiling. Had this been going on since central heating installation in 1976 the ceiling would have come down ages ago !

I have a 29 year old Potterton Netaheat 10-16 MkII which seems to be causing a problem. With the thermostat turned down the water heats up as normal & radiators remain cold. If the thermostat is turned up to heat the radiators this causes the expansion pipe/vent pipe above the feed and expansion...