A I see you're not alone Jules with this issue, lots of Google hits on this 
topic "ipad timer volume low". Have a read maybe something here will work for 
you.

https://discussions.apple.com/thread/250088140

Regards

Pete

> On 16 Dec 2019, at 5:06 pm, Susan Hastings <susanhasti...@mac.com> wrote:
> 
> Hi, have you tried changing which sound you want to play? When choosing a new 
> sound can you hear it play? Cheers, Susan
> 
> Sent from my iPad
> 
>> On 16 Dec 2019, at 3:45 pm, Juliet Kitson <billand...@gmail.com> wrote:
>> 
>> 
>> Hello All
>> I have a iPad mid 2013 all of a sudden the alarm when a timer has finished 
>> does not sound anymore but all other alerts and sounds work OK. any ideas 
>> welcome.
>> Regards Bill & Juliet
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