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could you take a picture of your airing cupboard? could be you've got a stuck open zone valve and/or a faulty thermostat that is calling for heat constantly. is the boiler still firing while the heating is off?

definitely a wiring problem if you have to have "HW" on to get the CH working. my current system is like that purely because it's a a back boiler with no reasonable controls, currently just a mechanical timer. HW controls the boiler firing and CH controls the pump circulation. you need...

which model have you got exactly? looking at the current manuals, the pro has 3 indicator lights and a display, the plus has a full display with radiator icon. would help to know what your system is as well, have you got a hot water cylinder or is it a combi boiler? are the pipes...

WD40 to clear up sticky pins, the pin should move up and down, returning to fully up naturally, the TRV head presses down on the pin when it reaches the set temp. did you check your water? it could be sludge gumming up the valve, in which case you want to look at flushing it clean and...

Is the Bristan's shower head or feeding pipework near to the ceiling or fed through it? if its too close to the level of the cold water cistern, you'll have no head of water to start the pump, as it's a positive head one it needs natural flow through the shower for the flow sensor to pick up...

ah an electronic baxi bermuda, mine's a manual one, no PCB to go wrong. Don't know about the constant starting issues, your RGI should be able to sort, (could only hazard a guess as i'm not a plumber / RGI) What is the orange dial set to on the boiler normally? that's the boilers...

you could try fitting a PEV (pressure equalising valve) on the mixer after the pump.

Sounds like something blocked on the feed to the cylinder. Do you still get hot water? HW called for, valve opens and pump runs, can't make its way through the cylinder coil as normal so it forced up the vent pipe as path of least resistance, comes back down through the expansion tank...

without knowing how your pipework is laid out, it's hard to say what's causing it. is it the kitchen tap? (which should be on the same pipe as the main stop cock) If so the fault could lie with the stop cock. regarding the upstairs tank, can you trace the feed pipe down? (should come...

Sounds like an issue with the thermostat selection on/in the boiler. You've said the boiler flashes green to say it's reached it's set temperature, it obviously thinks it has, even if the boiler thinks the desired temp is 35C ?? even though the thermostats are at "Max", are they actually...

To do it you would NEED the combi's "CH" side to come on, as you need the CH pipework up to where you Tee it off with zone valves to be actively heated. To put it into perspective, a normal system boiler only has "CH" flow and return, unlike a combi's HW in & out, CH Flow & Return. You...

90 degree solder it is then Threadjacker! p.s. the triton kit i've got comes with dog legs, 1/2" wallside to 3/4" showerside, just bin these and screw straight onto the kit then? or can i make things easier with 1/2" wall plate elbows? Cheers

Cheers, got a bosch SDS with rotor stop for christmas :wink: was looking at these fixing kits as they do a sharp 90, http://www.ebay.co.uk/itm/Concealed-Wall-Plate-Fixing-Kit-Bar-Type-Shower-Valve-/110805274031?pt=UK_Home_Garden_Bathroom_Shower_Units_PP&hash=item19cc824daf or...

Hi Guys, just checking to see if what i'm planning is sensible :lol: we've got a double ended bow shaped bath to go in, ex display model so the holes are already drilled for the taps along the long wall edge, pretty, but a p.i.t.a. / impossible if they need swapping :roll:. I do...

have you checked the radiator valves to make sure they're open enough? you could have two lockshield valves or one lock shield and one thermostatic. take the plastic cap off, mark the valves current position and use an adjustable spanner to move the valve open and shut a touch, if it's...

The top pipe should be both normally, you should find a tee with the vent going into the loft above the cistern and the tap feed off the other end of the tee. I'm a diy'er that reads a lot so I might be wrong when it comes to the stats, And I don't know for sure how the pipe stat would be...

have a look in your airing cupboard to see if there's a metal or plastic box sitting on a join in the pipework near the hot water cylinder. from what you've described, the hot water isn't getting from the boiler and into the coil in the hot water cylinder. it could be that the motorised...

If it aint broke, dont fix it! if the water is hot, but the cylinder cold, Then it's retaining heat very well!, Could well be furred up on the inside, is the pipe exiting the top of the tank hot to the touch? if so you could always try changing the cylinder stat for a pipe stat on the...

You need the vent to allow the Air displaced by the water to move in the soil stack, otherwise you'd get "glug glug glug" and a very poor flowing drain. and i agree with bernard, the blue tab at the bottom front of the syphon is a water conservation feature and appears to be set at the "max"...

Try as above, i'd disconnect your current hard drive when you install your new replacement "just in case" as you don't want to inadvertently format the old one and lose all your pictures / documents. if it is really goosed, there are data recovery firms, they charge a lot though!