How to fix a Hot Tub Air Lock.

We recommend watching this video all the way through before you start work on your hot tub.
How to identify an Air Lock in your hot tub and what to do.
0:19 How does an Air Lock happen
1:01 Panel Error messages
2:30 Switch off and Fill
3:48 Switch on
5:24 Opening Side panel
6:35 Purging pump