Any central heating engineers on here?

[chugga-bug]

Need a bit of advice from someone in the know please...:)

[xygax]

Lektronix engineer..... its just a bit bigger...!

Steve

[mark Taylor]

been a heating engineer for nearly 20 yrs
what up m8e
cheers

[ntlsurfer]

well mine just died brrrrrrrrrrrrrrrrrrrrrrrrr fully dressed tonight i think

[bronzino]

I'm a heating engineer/corgi reg, let me know if I can be of assistance chap.

[ntlsurfer]

its cool engineer is coming tomoz got special insurance

[Steve]

[quote=ntlsurfer;224433]its cool engineer is coming tomoz got special insurance[/quote]

If that 'special insurance' is one of those £3 a month policies that you get from the gas board or your water company, then don't be surprised if it ain't worth the paper it's written on. :(

Best of luck with it.

[chugga-bug]

Ok. It's an Ariston Microgenus combi that packed up this morning. Fuse in main switch blown. Put new fuse in and I could hear a fizzing sound from boiler so switched off again and opened/pulled down the switch/timer panel and switched it back on to see smoke coming from the connector to the 3 way valve motor. Pulled the connector off and sure enough there's molten plastic round one of the brass tabs on the motor unit, and water in it too. I took the motor apart and cleaned and dried it out but it still won't work. The boiler still works but only gives hot water but no heating, so I thought I'd take the motor apart and set it manualy to the positition that allows water through to the rads and replace it. Fired it up and it's working fine.
I've got the part on order and it should be here in a couple of days so I will be fittingit when it arrives.
My question in the mean time is, Does this valve only shut when the knob to adjust rad temperature is set to zero... i.e. Off. And is there any risk in me running the boiler like this?

[chugga-bug]

P.s. Yes I know I shouldn't be touching the boiler! But seeing as I fitted the whole system (except the final hook up to the meter) I feel like I have a right to at least have a try at fixing it. Not touched any gas fittings, only electrics.

[adieuk]

i wouldnt run your boiler when you go out m8
just incase something happened

[xygax]

The three way valve on mine only operates when the hot water is called for otherwise it sits preferenced towards heating. (its a Baxi Bahama (worst boiler in the world)) but quite simple to fix

Steve

[bronzino]

Diverter valves sit in the CH position, when hot water is called for a flow switch will sense the call for hot water and the Diverter valve motor will be actuated putting the boiler in DHW mode.

There are several variations of the above, but the principle is generally the same.

[kamikaze]

Just had the same problem with my sisters boiler.The divertor valve spindle is leaking and it's the water in the motor housing that has shorted. You should be able to get a diverter valve service kit for about £15 and the motor is around £35 to £50.

[kamikaze]

If you only change the motor it will blow again in a matter of days