Timer doesn’t sound when screen is off
For a few months now, I’ve noticed that the timer on my iPhone SE doesn’t ring when the time is up. I noticed this when doing a timed workout, where I had to keep setting the timer for one minute. My screen automatically locks after one minute and I couldn’t hear anything once the minute was up. I chalked it up to the alarm being too quiet to hear over jumping jacks and such. So I changed the auto-lock to two minutes, and could hear the timer going off as normal. It’s not the best solution, but in this situation it works.
But when I set the timer for two minutes to do a cool down, when the room is quieter, my phone does different things. Either it vibrates to the complete tune of one alarm, or it vibrates just a short buzz, or it makes no sound at all. I’ve also set longer timers where the time runs out and I get absolutely no notification.
How can I fix this?
iPhone SE, iOS 12