10. Troubleshooting
Low or No Suction
Audible air coming from
port cap/faceplate
Power source
Faceplate port broken/
cracked
Condensation or milk in
tubing
No "let-down" or breast
milk expression
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Valve and Membrane Check
• Remove and separate valve from membrane
• Inspect the valve for chips or cracks. Inspect the membrane for holes or tears. If
flawed or damaged replace valve and/or membrane prior to pumping
• Wash valve and membrane per Cleaning section
• Reassemble. Make sure the membrane lays flat on the valve, and if it does not,
replace the valve and/or membrane prior to pumping
Breast shield and Breast shield Connector Check
• Inspect breast shield and breast shield connector to make sure there are no cracks
and they securely attach to each other
Faceplate Check
• Wash faceplate and backplate per section 5.
• Reassemble faceplate and backplate, and reattach tubing to faceplate port
Connection Point Check
Inspect following connection points to ensure attachment is secure
• Tubing adapter to breast shield connector
• Tubing end to faceplate port
• Faceplate to backplate
• Test vacuum. If suction is not improved, contact Medela Customer Service at
1-800-435-8316.
CAUTION: Do not attempt to plug hole in cap or port with additional material.
• There is a built-in air leak for vacuum control, some audible air is normal.
• If pump is not turning on with the power adaptor try the battery pack.
• If the pump is not turning on with the battery pack, be sure the batteries have been
inserted correctly.
• If pump is still not working with the power adaptor or the battery pack, contact
Medela Customer Service at 1-800-435-8316.
CAUTION: If you are feeling a loss of suction with the broken faceplate,
do not use the pump until the new faceplate arrives.
• Contact Medela Customer Service at 1-800-435-8316 or order online at
www.shopmedela.com.
• Refer to "Breast pump & Tubing Care" section 5.
• Ensure your breast pump is assembled correctly and that there is suction.
• Relax and take a 10-15 minute break if let down is not achieved after 2 consecutive
pumping sessions.
• Consult with your healthcare provider or breastfeeding specialist if expression does
not occur.