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Ign box on't gas valve replace it .....job done

To check em takes seconds, rather than spend 30min draining and swoping parts, head unclips and lifts off, check rod (spindle) which is now visable, does it move easily? if not new plastic cover with new front seal inside cover, swop plastic diverter bobbin at the same time.

Got to be back to basics, take off the diverter motor, check spindle is free and not stuck. If ok watch spindle in motot moving when water used and then turned off. After that plug in a thermistor for the heating and check results.

The non return which I fitted was a brand new one which only worked the once, took it back to merchants for another new one, (we could not find a fault with the first one) fitted 2nd one just the same, so external loop fitted no further problems since, so now I just fit external loop straight away!

Possibly a stuck non return valve in the brass fitting, (this is the one in the left hand fitting where the flex connects to). Once had one like this, fitted a new one, it would then allow water to pass once into the system, but the back pressure would lock the valve solid, finally fitted a...

Does this boiler have the brass version of a Magna Cleanse fitted inside the bottom of the appliance?, which Alpha push, to collect the dirt fron the system?

The valve on top of the boiler is simply a car tyre valve, how often do you check tyre pressures? I admit as exp dosen't do 20000 miles per year, but should be checked each service?

Now I have a FGA been checking new D Tec installs, I have yet to find one correctly set up.

The only thing that controls the water through the diverter valve is the wax capusle in the base of the diverter, you can see the valve spindle moving by removing the aluminium cover from the top of the diverter valve, it should pull down when you open a hot tap, and then slowly move back up...

Has to be 927 best there is and EASY to set and use

there's a big grey metal control box with a relay inside controlled by the room stat, think I would sugest change to a y plan, not sure if you can still get a acutator for this thing.

is this a Duoval with white, orange, yelow, & blue wires? (3 port valve)

leak must be from one of two places Is the pressure going down on the gauge? if so, front seal of Div valve regs changing (Vokera Maxin fits) If not showing on gauge, leaking O ring at back of Dia housing, O ring is in the Dia kit for ther boiler.

IF..... the exp regs. changing, its fitted sideways and easy to get to, a doddle to change

you might just find that turning the power off will stop the fan, but will possibly put out the pilot light through the overheat stat whilst cooking the heat ex washers leaving leaking joints which can be messy

there is a system made by Tunstall, it works in conjunction with Social Services, we have fitted a couple for the local council, this is a gas sensor (fitted in the room with the appliance), which is wired to a relay system which sends a signal down the phone care line to inform that the gas...

Your problem would be not serviced @ 12 months. Checking back we have been aware of this problem for 12 months or so! we simply change the seal at the time of service, job done.

this boiler looks, from the flue arrangement to be the same as a chaff... (yes we know Ariston took over Chaff), we have been changing the inner flue seal (available as a spare part) which has been corroding away even though the appliance HAS BEEN INSTALLED correctly, so don't rush to blame...

just been talking to a colleague, he wanted the 2 screws that go into the bottom outer case for a Rehema £17.00 (each)

as previous partsarena/baxi/timer its there