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'Then the earth was connected somewhere else in the house circuit to 'live' possibly' - phhut Strange thing, is that I had touched the metal casing of the switch, I only got a shock when I disconnected the earth cpc from the metal casing, touching the cpc. I originally thought that the...

I was recently working on a friends new (old) house lighting circuit, changing a light switch. I isolated the lighting circuit, tested for voltage at the switch, circuit was dead. I removed the switch circuit, then removed the earth, when I received a shock from the earth!!!!! :shock...

Hi ChrisR, You were spot on correct! The cold water feed 'T' point was full of crusty sludge/coke, nice one! The power flush should do the trick ! Thanks :D

Yes, agree, but I shall do this with only one radaiator opened, then close it and go round the compete system, opening and closing radiator valves, so that maximum pressure is going through each radiator line. After that it is the power flush, if that doesnt work :cry: The pump is a...

Hi ChrisR, The pump is new (just over a year old) and so is the three port valve! :shock: I suspect the noisey pump is a result of labouring due to the downstairs blockage? It was quiet with the radiators on upstairs. :? Just put the water on at 7.00pm and the boiler is again...

Pump checked, some slight air and blackened water. I have isolated all upstairs radiators and downstairs have come on. Two of the five downstairs radiators are lukewarm and the pump sounds a little noisey.

Heating has been running for near an hour now and the upstairs rads are hot, albeit one of them is cooler in the bottom centre. The downstairs rads are still cold. ChrisR, yes the tap is located above the T. Difficult to say what the colour is because I backfilled the system a couple of weeks...

Ok, have been in loft isolated f&e tank, siphoned down. Split cold water feed pipe to pump and checked small amount of water passed. Switched on supply to f&e tank, successful water flow into bucket in airing cupboard. Reconnected cold water feed and ran HW system, boiler tripped out on...

Hi Artful, Assuming that I remove a possible blockage from the cold water feed (I remember that there was a film in the f&e tank, so you may have a point!), will the cold water feed be enough to re-fill the system or should I attempt another backfill? I will follow your instructions on...

Hi Artfulbodger, Loss of pressure was suspected due to vent plug releasing air, then no water coming out, am I right in this assumption? The vent is a vertical pipe close to the hot water tank tank slightly above the height of the pump. Yes, the description of the 'H' system sounds...

I have a problem with the Central heating and water not getting hot. System: Gravity feed system, with H configuration and 3-port valve, Baxi Boiler, no drain off points except from radiator. No pressure gauge. No flling loop. History: System has worked fine for past three years, when I...