Check the following:
1. Check the white valve is connected with the star shape facing upwards, if downwards the pump will have no suction (only for the manual breast pump). Check wether the duckbill valve has a crack or a tear which it is advisable to replace it (only for electronic breast pumps).
2. Check that the petal massager is flush against the milk funnel, encourage the cushion as far as possible into the trumpet and down the tube section of the pump body, removing any air from behind the cushion, which could resulting in no suction.
3. Check the diaphragm is fitted securely with no air loss resulting in no suction.
4. Smear a little Vaseline or Petroleum Jelly around the rim of the cushion to help give a good seal around the breast when pumping, to avoid loosing vacuum.
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