Sime Ecomfort Plus - replacement diverter motor and cartridge

All I can say is this: The diverter motor and cartridge for the Sime Ecomfort Plus (Sime part numbers 6319620 and 6319625, respectively) are identical to:

• the motor which can be found on a Potterton Performa 24 (part number 720064401); and
• the cartridge on the Biasi Activa A Plus (part number BI1351109)

In each respect, the parts are made by a single manufacturer of boiler components. The only possible explanation is that Sime, Potterton, Biasi, etc, buy these parts off the shelf and then use them to make "their own" boilers.


The only difference is the price. 


Buying the Sime labelled parts (from ebay, for example) will come in at about £140.

Buying the alternatives that I have suggested comes in at less than £60 (ebay again).

My research shows that the price of these parts from several different plumbers merchants is correspondingly different (although far more expensive). This, then, is not just a quirk of ebay.

I'm sure you'll agree that "the trade" has a lot to fucking answer for.

More soon, no doubt...

D