Sip-n-puff not working properly

This section describes a partial or total loss of control/response with sip-n-puff ONLY. Test to see if the TetraSki is responsive with the joystick, and if not, see Loss of control/no control with BOTH joystick and sip and puff.

If sip-n-puff control is intermittent or unresponsive, it’s usually due to either an obstruction in the air line or an errant signal from the joystick unit.

• Inspect the tubing and make sure no saliva has entered into the tube and frozen. If this has happened, replace the tubing or melt the ice and forcibly blow out the moisture from the tube.

• Make sure that the filter hasn’t filled with saliva. A saturated filter will usually cause an intermittent signal but not a total loss of control.

• Check to make sure the tubing is securely stretched over the filter and hasn’t come loose.

• Check to make sure that the seat isn’t leaning too far back and pinching the air hose on the frame

• Check that the skier’s arm/hand are clear of the joystick knob and aren’t causing accidental input - any input from the joystick will override sip-n-puff controls.

• Inspect the joystick post and spring response to make sure it isn’t damaged. The post can get bent due to excessive torque applied with some of the longer joysticks, and this prevents a proper center-return-action of the internal spring.

  If suspected, place the ski in debug mode by rapidly pressing the power button five times, and inspect the JoyX and JoyY values. They should always read ‘0’ with the joystick untouched.

  If damage has occurred to the joystick post, contact Tetradapt support for assistance.