Servis M3115W Auto – Fill & Spin problem

Hi Folks

Seem to be having my fair share of wierd Servis probs just lately – just wondered if anyone had similar prob to this one or can advise..

No fill on wash just drum action – fills cold on first rinse only – works normally through first rinse, empties then no fill for rest of program – impusles normaly through to end with just wash action and no further fill and no spin. Reset to wash again – same results – again fills cold only on first rinse.

All signs of a blocked pressure system or faulty pressure switch

Checked valves – ok but no L & N to them. Checked pressure switch with meter – ok, Disconnected pressure tube from switch – still the same..

Thought this must be module fault – back today changed module – still the same fault.. only thing left is program switch but just seemed a bit to wierd to be the program switch … but you guys out there might know better.

Oh yes.. checked for earth faults – all clear – and pinched module connectiond to make sure they were tight..

Just out of interest.. when checking out the pressure system, noticed there was no connection to the low level on the pressure switch – just to connections (old numbering) 11 (common) 13 (activated level) and 14 (flood protection).. So what controls the water intake? – presumably the module switches the netural out when signaled by the 13 connection when activated by the water level – in which case does the prog switch supply the valves with a live feed?

Also, noticed there was a half load button – Is there 2 waters levels then on this machine and how does it get then via a single level pressure switch? – Presumably the higher level is timed?

Any pointers to help solve this problem gratfully received…

Thanks

Mick