Water in Diesel filter sensor

Hi I have a 1998 Peugeot boxer 1.9 TD I a trying to source the sensor in the diesel filter but to no avail does anybody know where I can purchase one please thank you in advance steve

is it broken if not remove and fully dry it out this will put out the light

Hi do not think is broken keeps coming on and off there does not seem to be any water in filter when I turn the wheel on the filter is it easy to remove thanks for replying Steve

In my handbook for my Transit Diesel (Duetto), it says OK if it goes on and off (which it does every now and then), only if it stays on you should look to empty the drain. Ive checked and there no water in my one either. Maybe its the same for your Symphony in that its ok if it goes on and off every now and then.

Thanks