I have a 2002 Optima Spa. A few months ago the air blower (icon looks like bubbles) stopped working. If i press the button on the pad, a ‘click’ is heard, the icon comes on but the blower does not. Pressing the button again makes the click sound again and the icon goes away. Is it possible that there’s a fuse that might need replacing or something minor like that, or has my blower bit the dust?