our simpson encore 806 washing machine flashes SF after 10 seconds of filli?

I have the same problem with mine. I'm not sure if the SF error code actually means 'Spin Fail' or 'Suds Failure' but it was suggested to me that the PC panel is detecting a low spin speed due to a buildup of detergent and to run the machine on a warm or hot wash without clothes to disperse any buildup. I've tried this many times but it still randomly comes up with the same SF error code....

Kath
April 2013