A broken or malfunctioning rental breast pump leaves you stranded at the worst possible moment—especially when you're in the middle of your nursing journey and relying on that equipment daily. The good news is that most rental issues have straightforward fixes, and your rental provider should be your first line of support. Let's walk through the common problems and how to troubleshoot them effectively.
Check the Power Source First
Before you assume the pump itself is broken, verify the basics. Ensure the pump is plugged into a working outlet—try plugging another device (like a phone charger) into the same outlet to confirm it has power. If you're using a battery-operated or rechargeable model, the battery may simply be depleted. Charge the pump for at least 2–4 hours, depending on your model's specifications, which should be in the rental documentation you received.
Look at any indicator lights on the pump. Most modern rental units have LED displays or light signals showing charging status. A red light typically indicates charging in progress, while green means fully charged. If there's no light response after 30 minutes of plugging in, the power adapter itself may be faulty.
Inspect Tubing and Connections
Disconnected or cracked tubing is one of the most common reasons a pump won't work properly. Examine all tubes running from the pump motor to the collection bottles and flanges. Gently push each connection point to ensure it's seated firmly—a loose connection can disrupt suction immediately.
Look for visible cracks, splits, or discoloration in the tubing. Rental pumps see a lot of use, and silicone tubing can degrade over time. If you spot damage, don't try to patch it with tape; contact your rental provider right away. They should replace the tubing at no additional charge, typically within 24–48 hours.
Also check that the tubing isn't kinked or pinched. If it's been coiled too tightly or stored in a cramped space, it can restrict airflow and reduce suction power.
Verify Suction Power and Settings
If the pump turns on but feels weaker than usual, suction may be the issue. Most rental pumps have adjustable speed and suction settings. Check your user manual to confirm you're using the recommended strength—beginners often use too-low suction settings, thinking it's more comfortable, when actually proper suction is essential for efficient milk transfer.
Test suction with your hand: place your palm gently over the flange opening (the part that sits on your breast) with the pump running. You should feel a clear, rhythmic pull. Weak or absent suction means either the tubing has a leak, the motor is failing, or internal valves are clogged.
Clean and Unclog Valve Systems
Milk residue can accumulate in the pump's internal valves and tubes, especially if parts weren't cleaned thoroughly after use. This buildup reduces suction and can create unpleasant odors.
Steps to deep-clean your rental pump:
- Disassemble all removable parts (flanges, collection bottles, tubing)
- Rinse each piece with warm water immediately after pumping to prevent milk from drying
- Soak the parts in warm, soapy water for 15–20 minutes
- Use a small bottle brush to scrub inside tubing, paying attention to the valve area
- Rinse thoroughly and air-dry completely before reassembling
If suction still doesn't improve after cleaning, the internal valve membranes may need professional replacement—another reason to contact your rental provider.
Contact Your Rental Provider Immediately
If troubleshooting doesn't resolve the problem, reach out to your rental company. Most reputable providers offer phone or email support within hours and can often send a replacement unit within 1–2 business days, sometimes even next-day in major metro areas. Rental fees typically range from $40–$80 per month, and most contracts guarantee equipment replacement at no extra cost if the pump malfunctions.
When you call, have your rental agreement number and pump model handy. Describe exactly what's happening—is there no power, weak suction, or strange noises? The more specific you are, the faster they can diagnose and send a replacement.
Document the issue with photos or a short video if possible, especially if there's visible damage. This protects you and helps the rental company improve their quality control.
If you're unsure which rental provider near you offers the best support and warranty terms, Mercoly makes it easy to compare breast pump rental options and find trusted providers in your area.
Frequently Asked Questions
Q: How long does it typically take to get a replacement pump if mine breaks? A: Most rental companies ship replacements within 24–48 business hours; some offer next-day delivery in urban areas. Check your rental agreement for their specific replacement policy.
Q: Should I stop using the pump if suction feels weak, or is it safe to keep going? A: Stop using it immediately if suction is significantly reduced, as poor suction can lead to incomplete emptying, which increases mastitis and infection risk. Contact your provider for a replacement.
Q: Are cleaning supplies included with rental pumps, or do I need to buy my own? A: Most rental packages include basic cleaning instructions, but you'll typically need to purchase your own brush set and mild soap; these cost $15–$30 and last through multiple pumps.
Ready to find a reliable breast pump rental provider? Compare local options today and get back to pumping with confidence.