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Mend Myson Orion 75Si Fan Boiler Gas

Need replacement fan for gas boiler?

I am looking for a replacemnet Fan Assembly for a Myson Orion 75Si wall mounted gas boiler GC Appliance No 4149421. The Fan Asembly part number is 309A634.

The boiler is approximately 12 years old.

I am told the part is not available in Dublin and I will not be able to check this until January. Any ideas of where I can get the part in the UK?


I believe the problem is that the bottom bearing on the vertical spindle is worn and sticks. I would swap the top and bottom bearings if I could take the fan apart but cannot remove the lower bushing to detach the fan from the motor.

Paul Graham, paul_graham@ie.ibm.com
December 2006
MysonMyson Orion 75SiHeating, Home Heating SystemsFan Boiler Gas
There is a replacement fan for this model. It is THORN 4430268 FAN ASSY WFFB1202-0081

lofty
January 2010
Hi Paul
Cant be sure on the model but try thesearch on this site they seem to have most fan assemblies, I have been looking for a 60SI and its on there
http://www.gasbits.com/component/page,shop.browse/category_id,5869/option,com_virtuemart/Itemid,32/

Dave
November 2007
If you can get the bearings out then the size you want is a
6mm diameter (shaft size) with an outside diameter of 19mm with a depth of 6mm (from memory)
the bearings can be difficult to remove so if you cant get the part you have nothing to loose.

ex thorn rep 23 years

dave b
April 2007
i've checked a few dealers in uk they all say no longer available.
good luck.

hi-spec plumbing
December 2006

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Myson Orion 75Si Fan Replacement - UK Suppliers