When there is no suction power, please check the following.


Electric Breast Pump Portable / Electric Breast Pump Pro

  • Does the flange fit your breast perfectly?
  • After confirming that the flange fits your breast, turn the power on and use the pump.
  • Is the Comfort ProperFit™ flange firmly attached to the flange?
  • There is a cut at the tip of the silicone valve. Is the cut torn or widened?
  • If the above is the case, please replace it with a spare valve and then use the pump.
  • Is each part assembled correctly?
  • Is the silicone valve inserted firmly (until it stops)?
  • Is the soft cup placed inside the main body?
  • Is the soft cup turned inside out or torn?
  • Is there moisture in the soft cup?
  • If breastmilk or moisture from washing the pump parts sticks inside the soft cup, it may flow back to the motor and you may not be able to pump.
  • Is the flange firmly inserted in the main body?


Manual Breast Pump

  • Does the flange fit your breast perfectly?
  • Is the Comfort ProperFit™ flange firmly attached to the flange?
  • There is a cut at the tip of the silicone valve. Is the cut torn or widened?
  • If the above is the case, please replace it with a spare valve and then use the pump.
  • Is each part assembled correctly?
  • Is the diaphragm perfectly set, so as not to have a visible gap?
  • Is the silicone valve inserted firmly (until it stops)?
  • In all cases, please fit your breast firmly with the flange so that there is no space between them. If there is a gap between your breast and the flange or space between improperly assembled parts, you may not be able to pump as the suction pressure will be insufficient.