Have you check Edit Menu/Preferences/Audio Hardware ASIO settings?
Is the no sound for all the audio tracks - numbered, Voice, and Music?
Do you have the latest version of QuickTime installed on your computer, and are you running the programs as administrator?
To be continued in the morning morning.
Also note that MOV is a format which can house any of hundreds of video file codecs.
Open this file in Media Info (a free download) and note the resolution, frame rate and audio and video codec it lists and we'll be better able to advise you.
Although, as ATR noted, if you're seeing a waveform on the timeline and your meters are moving, then Premiere Elements is registering audio on that clip -- which would indicate that the problem is in your ASIO settings. (ASIO settings can sometimes get reset when you use a headset or other USB-connected microphone.)
Since you state at the onset that your no sound issue exists for your .mov file as well as the Adobe audio that comes with the program, that is not pointing to a likely codec issue.
So for the moment, I will await the answers to my already asked questions in post 1. At this time, I would add, do you have a microphone installed to computer system - if so, what kind?
Thanks all for the great responses. As first suspected, I had to go into Preferences/Audio Hardware and select the actual output device, which is a bluetooth speaker connected to Mac. Once this was checked, all sound came through.
Thanks for the follow up with the great news of solution found. Great job.
Best wishes with your Premiere Elements projects.