Guild Wars 2

Cleansing Burst: Overcharge your Healing Turret, supplying a burst of healing that cures all conditions.

60 second Cooldown
Healing: 1,302
Radius: 360

This ability is still broken. It does not heal, nor does it cleanse any conditions.

It does actually work but the tooltip is incorrect.

Firstly, it only removes 2 conditions (not all) and this is confirmed to be intentional. There is also no burst of healing along with the condition removal which may or may not be intentional.
Second, you may have noticed that the Healing Turret has a pulse to it. Every 8 seconds or so, the turret will spin and apply a new stack of regeneration. Cleansing Burst takes the place of a regeneration pulse. So this mean if you use Cleansing Burst directly after your Healing Turret has just pulsed, you will have to wait up to 8 seconds before it removes conditions.

The turret needs some tuning, in my opinion. But it is working as intended for the moment.