Daikin VRV Test Mode help with Diagnostic

How to perform a self diagnostic test on a Daikin VRV 4 and tips. This same principle can be applied to many VRF systems as well that have test mode. Hope this helps hvac technician out there. MTT! You can also follow me at, Instagram Facebook #ac 00:00 Intro 00:18 Step 1 00:44 Step 2 01:10 Test Code Steps 02:35 Stopping Test 03:00 Recap 03:13 If Problem Found 04:06 Master Unit Tip