Keeps Stopping During Cycle F17 Error Bosch

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Bosch Avantixx stops during cycle with F17

The problem

A Bosch Avantixx washing machine, about 5 years old, was stopping roughly 10 minutes into the programme and displaying F17. The error appeared around three times per cycle and the user had to press Start to continue before the cycle eventually finished. The machine also seemed to keep draining after the water had gone.

Likely cause

The strongest diagnosis in the discussion was a water fill problem, with F17 referenced as a possible faulty water valve / filling fault. A secondary possibility mentioned was failure to heat, but this was presented as less certain and dependent on whether the machine was filling and washing normally.

What fixed it

Recommended action was to diagnose whether the fault was on filling or heating before replacing parts. If the machine was not filling correctly, the inlet valve was the main suspect. If it filled and then started washing normally, the heater circuit was suggested for testing, with advice not to replace the element speculatively and to test it with a continuity meter first. The exact repair was not confirmed.

Checks to try

• Hose checked for kinks
• Filter washed
• Inlet filter checked and found clear
• Pressure switch pipe blown through and found clear
• Large plastic chamber connected to the pressure switch pipe checked and found clear
• A different machine worked fine on the same supply/drain setup

Parts or tools mentioned

• Pressure switch
• Heating element
• Continuity test meter