Answered by Shaykh Faraz Rabbani
Does water in your ears when fasting break your wudu? My mosque haspublished that it does and they’re hanafi imams…
Water that gets into the ears does not invalidate one’s fast in the Hanafi madhhab. [Maraqi, Durr]
However, there is difference of opinion on this, so one should take reasonable precautions while showering, and the like.