Having your iPhone alarm go silent can throw a wrench into your daily routine, leading to oversleeping or missing important reminders. Fortunately, there are several things you can try to fix the problem when your iPhone alarm is going off but there’s no sound.

1. Check the Alarm Sound: Go to the Clock app, tap on Alarm, then edit an alarm to see what the sound is set to. Make sure it’s not set to “None.”

2. Increase the Volume: Use the volume up button on your iPhone to increase the volume while an alarm is going off, as alarms use the Ringer volume level.

3. Check the Ringer Switch: The Ring/Silent switch on the side of your iPhone should not be on silent mode.

4. Restart Your iPhone: Sometimes a simple restart can resolve software glitches including an alarm sound issue.

5. Check Do Not Disturb: If Do Not Disturb mode is turned on, it might suppress alarm sounds. Turn this setting off in Control Center or in Settings > Do Not Disturb.

6. Update iOS: Make sure your iPhone is updated to the latest version of iOS as it might contain fixes for bugs causing your issue.

7. Check Sound Settings: Ensure that the “Change with Buttons” setting in Sounds & Haptics isn’t limiting your alarm volume.

8. Delete and Remake Alarms: Delete all your current alarms and set them up again from scratch.

9. Reset All Settings: You can reset all settings without erasing content via Settings > General > Reset > Reset All Settings. This might resolve any conflicting configurations causing the issue.

10. Check for Headphone Mode Glitch: Sometimes your iPhone thinks headphones are plugged in. Gently insert and remove headphones or clean out the headphone jack (or Lightning port if a newer model).

11. Contact Apple Support: If none of these steps work, there may be a hardware issue with your speakers or another internal problem that requires professional assistance from Apple support.

Repairing an unresponsive alarm doesn’t have to be complex; these steps should cover most issues related to alarms not sounding on your iPhone!