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maintenance
For optimal performance, keep spare parts on hand. Replace
at the first sign of wear or if you pump less milk than expected.
It is normal for pump parts to lose elasticity and wear over time
with use, washing, and sanitizing. Here is a guide for pump
maintenance.
Breast Pump Part Replacement Guide
Part
Pumping for occasional use (see PAGE 1)
Membrane
Diaphragm
Valve, and flange (hard,
non-moving pieces)
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USA/Canada: 1-855-EFI-BABY (334-2229) • www.evenflofeeding.com
2-3 months
3-6 months
6 months
Problem
Possible Cause
No batteries or low bat-
teries
AC adapter cord is
plugged into pump and
batteries are inserted
Pump won't
turn on
AC adapter is not plugged
into a functioning wall
outlet
Batteries installed when
trying to use AC adapter
The membrane is stuck to
the valve
Milk won't flow
Not stimulating milk
into the bottle
release before expressing
Fast milk flow
Motor not assembled to
flange properly
Diaphragm not inserted
into flange
Little to no
Diaphragm pinched
suction
Diaphragm is damaged
or worn
Valve not assembled to
flange
Membrane worn, torn or
not assembled to valve
Dried milk in pump
Continued on next page...
USA/Canada: 1-855-EFI-BABY (334-2229) • www.evenflofeeding.com
TROUBLESHOOTING
Action
Make sure fresh, brand-name batteries are
installed correctly (PAGE 7).
If using batteries, adapter cord must be re-
moved from pump for batteries to work.
Plug AC adapter into known functioning
wall outlet. Test outlet with other electrical
devices.
Try operating pump with fresh, brand-name
batteries.
Remove batteries before using AC adapter.
Clean the valve and reassemble, per step 1 in
Assembling Your Breast Pump section (Page
6).
Stimulate your milk release with massage
and hand expression before placing pump to
breast (PAGE 9).
Turn the control dial counterclockwise for
lower suction (page 10).
Firmly snap motor onto flange (pAGE 6).
Once motor is firmly snapped into place, hold
pump by flange (page 6).
Properly install diaphragm. (STEP 2 Page 6)
Disconnect motor, reseat diaphragm, and
reattach motor (page 6)
Check diaphragm for signs of wear, holes,
cracks, etc. Replace damaged components.
Attach the valve firmly to flange (Page 6).
Replace membrane or ensure that it is
connected properly to the valve (Page 6).
Follow cleaning instructions (Page 11). Pay
extra attention to the valve and membrane.
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