Siemens hydrosensor dishwasher SE25A091GB/22

Question

Hi there,

hope u can help. i have a 2003 siemens hydrosensor dishwasher.

problem:

1. when turning power on and setting wash cycle, gurgling noises come from the bottom of the dishwasher drain/pump system and no water flows into the dishwasher.

2. however, when i manually fill the dishwasher with water, the drain/pump system pumps out the water and the wash cycle starts in the usual manner.

3. But, when the water has been pumped out, the wash cycle stops and gurgling noises start again.

what could be the problem?

I have cleaned all filters including inlet as described in the user manual.

hope u can help,

cheers Paul.