Water Pump Running constantly

alanfallow

I hope someone can help.

I have an Abbey 1998 Domino.  The problem I had was the water pump was running intermitant.  I discovered that the microswitch was burnt out in the Whale pressure valve.  I replaced the switch AS5005 and the repair kit with diaphrams etc.

Now the pump runs all the time, I even took out the spring etc inside the valve and it still keeps going.  I have 3 wires going to it 1. orange and white,2.purple and yellow 3.purple and black.  Two of them have small terminals and one has a larger one not
quite sure which order they go.  If I switch them over nd turn on the pump it blows the 10amp fuse right away.

 

I'm at my wits end now.  Any help at all would be brilliant.