Tusa Zen IQ900

[23Dusky]

I have the Tusa Zen IQ900.
Having issues getting it out of ALT mode.
If press the M button down it shows ALT at the bottom.
If I hold the M button down for a couple of secons ALT flashes on the top.
I am unable to set Nitrox levels and when I enter the water, display shuts off.

 

[TUSA]

HI-
The unit should be returned to TUSA directly for evaluation and repair/replacement. You can contact TUSA customer service for an RMA# at 800-482-2282 or info@tusa.com.
Thank you.