Ariston Microgenus 3-way spring kit

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Anyone replaced one of these and if so how long did it take you to work it out? - me, three visits and two calls to the unbelievably patronising MTS support tw@t.
 
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I assume you mean the motor driven diverter valve as used on the Microgenus A23 MFFI ?

In that case it takes about 15 minutes to get the block out of the boiler and 5 minutes to change the internals and another 12 minutes to get it back in!

I did one this afternoon!

Tony
 
Dunno, it is the motor driven one, but the 27/31 MFFI series II combi.

P.S. Anyway, the point that I was eventually going to make is that this bit is effectively a consumable item - in that it will eventually fail. So, why do MTS not publish details on how to change it?
 
I have never seen a failed one except for:-

Top gland leaking from dirty water, 10 min to replace.

Bottom spring/retainer out of position, 40 minute job as explained above. Thats what I did today.

Tony
 
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That's me told then! system was perfectly clean (complete CH system installed by me about 3.5 years ago). The bit I had trouble with was actually seeing that there was a union on top of the diverter valve.

My signatures not just for fun you know.
 
I think we need Chris to post one of his drawings of the part.

I am not sure what you mean by the union. The top is the gland with a slot for the clip to hold in the motor assuming that we are talking about the same unit.

Its a bit more difficult to get out the lower part and I often have to ask the customer to hit the 300 mm spanner with a hammer!

Tony
 
The top is the gland with a slot for the clip to hold in the motor assuming that we are talking about the same unit.

Yep, that's the one. My one just looked like a solid brass casting or maybe I just need my eyes tested.
 

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