Inogen Authorized Service Center with same-day repairs and overnight return shipping from Rochester, Minnesota
Service Center | Main Clinic Supply
Inogen Authorized Service Center with same-day repairs and overnight return shipping from Rochester, Minnesota
Written by Mark Luther, CTO & Certified Oxygen Specialist at Main Clinic Supply • Updated February 2026
POC Service Center: Fast Facts
- Factory Repair Certifications: Certified to diagnose, repair, and recertify leading portable oxygen concentrator brands, including Inogen.
- Repair Speed: Same-day repairs with overnight return shipping
- Lead Technician: Mark Luther, Inogen Certified, Factory-Trained, 17+ years experience
- Location: Rochester, Minnesota (home of Mayo Clinic)
- Brands Serviced: Inogen (Rove 6, Rove 4, G5, G4, G3), CAIRE, GCE, O2 Concepts, and more
- Warranty Repairs: Covered at no cost for in-warranty units purchased from MCS
- Loaner Units: Available for lifetime warranty and select service package customers
- Service Line: 1-800-775-0942
When your portable oxygen concentrator needs service, every hour matters. Unlike most oxygen equipment retailers who must ship your device to a distant manufacturer facility and wait weeks for a return, Main Clinic Supply repairs your POC in-house at our Rochester, Minnesota service lab. For most issues, your unit is repaired the same day it arrives and shipped back overnight.
This capability exists because Main Clinic Supply holds active factory repair certifications for all leading portable oxygen concentrator brands, including Inogen. In 2026, MCS made the decision to end all manufacturer authorized reseller agreements to achieve total independence. This allows our oxygen specialists to recommend the best device for each patient’s condition and lifestyle without any manufacturer restrictions or obligations to any brand. While we no longer operate under reseller agreements, our factory repair certifications remain unchanged. Our Rochester, Minnesota service center is equipped to diagnose, repair, and recertify portable oxygen concentrators across multiple platforms. Our 14+ years of experience and 10,000+ verified reviews remain exactly the same — the only thing that changed is who we answer to: you.
What factory-certified service and an independence means for you.
Most Retailers
When you buy from a typical online retailer and your POC needs service, the retailer ships your device to the manufacturer. You wait 2-4 weeks (sometimes longer) for diagnosis, repair, and return shipping. During that time, you may be without your oxygen concentrator.
Main Clinic Supply
When you buy from Main Clinic Supply and your POC needs service, we diagnose and repair it at our own facility in Rochester, Minnesota. Our factory-trained technicians, led by Mark Luther, have direct access to genuine Inogen parts, diagnostic tools, and repair protocols. Most repairs are completed the same day we receive your unit. We ship it back overnight.
- Day 1: You call us. We troubleshoot by phone and arrange shipping if needed.
- Day 2: Your unit arrives at our Rochester service lab.
- Day 2 (same day): Our technicians diagnose and repair the unit.
- Day 3: Your repaired unit arrives back at your door via overnight shipping.
How the Repair Process Works
Step 1: Call us. Contact our service team at 1-800-775-0942 or submit a Service Request online. Our oxygen specialists will walk through basic troubleshooting to determine if the issue can be resolved remotely.
Step 2: Ship your unit. If repair is needed, we provide a prepaid shipping label for warranty-covered repairs. Pack your concentrator (without batteries if shipping by air) and drop it off at the carrier.
Step 3: Same-day repair. Upon receipt, our technicians diagnose the issue, perform the repair using genuine manufacturer parts, and test the unit to ensure it meets factory specifications.
Step 4: Overnight return. Your repaired and tested unit ships back to you via overnight delivery. For customers with lifetime warranty packages, a loaner unit may be available to bridge the gap.
Common Repairs and Maintenance
- Sieve bed replacement: The most common maintenance item. Sieve beds are user-replaceable on the Rove 6 and Rove 4, but we can perform the replacement and verify performance if you prefer.
- Battery issues: Diagnosis of batteries not holding charge or not being recognized by the concentrator. We test and replace as needed.
- Alarm troubleshooting: Diagnosis and repair of persistent alarms including low oxygen, system fault, and breath detection issues.
- Compressor service: Internal compressor maintenance for units showing reduced oxygen output or unusual noise.
- Circuit board repair/replacement: For electronic malfunctions including display issues, button failures, and sensor problems.
- Cannula barb and housing repair: Physical damage to the oxygen output connection or external housing.
Service Plans and Lifetime Warranty
Main Clinic Supply offers several service and warranty options beyond the standard 3-year manufacturer warranty:
Sieve Bed Replacement
Sieve beds are the molecular filters inside your POC that separate oxygen from nitrogen in ambient air. Over time, they lose efficiency and need replacement. On the Inogen Rove 6 and Rove 4, sieve beds are designed to be user-replaceable, which means you do not need to ship your entire device for this routine maintenance.
Signs your sieve beds may need replacement include a gradual decrease in oxygen purity, more frequent low-oxygen alarms, or the unit working harder (louder) to maintain output. If you are unsure, call us and our technicians can help you evaluate whether replacement is needed.
Troubleshooting Before Sending Your Unit
Before arranging a repair, try these steps. Many common issues can be resolved without service:
- Unit won't power on: Ensure the battery is fully seated and charged. Try the AC power supply directly. Test a different power outlet.
- Low oxygen alarm: Check that the nasal cannula is properly connected and not kinked. Clean or replace the nasal cannula. Ensure the air intake vents are not blocked.
- Battery not charging: Remove and reseat the battery. Verify the AC power supply LED is illuminated. Try a different outlet. If using an external charger, test directly on the concentrator.
- No breath detection: Ensure the cannula is positioned correctly in both nostrils. Try a new cannula. Breathe normally through your nose (mouth breathing will not trigger the sensor).
- Unusual noise: Some increase in noise at higher settings is normal. If the noise is new, persistent, or accompanied by alarms, contact us for diagnosis.
If troubleshooting does not resolve the issue, call 1-800-775-0942. Our team can often diagnose problems remotely and determine the fastest path to getting you back to full operation.
Related Resources
About the Author
Mark Luther
Chief Technology Officer (CTO) & Certified Oxygen Specialist
14+ Years at Main Clinic Supply | Rochester, Minnesota
Mark Luther has dedicated over 14 years to the technical advancement and service of portable oxygen concentrators at Main Clinic Supply in Rochester, Minnesota. As CTO, Mark leads the Independent Authorized Service Center, where he oversees a team of specialized technicians focused on the maintenance, repair, and configuration of the Inogen Rove and G-series platforms.
Certified Inogen Technical Support
Mastery of the internal diagnostics and repair of the Inogen Rove 6, Rove 4, and legacy G5 systems.
Oxygen Therapy Configuration
Specialized in tailoring high-priority medical equipment to meet the specific flow requirements of seniors and travelers.
Preventative Maintenance
Architect of Main Clinic Supply's "Worry-Free" service protocols that extend the life of portable oxygen devices.
At Main Clinic Supply, our technical philosophy is simple: Accuracy saves lives. My goal is to ensure that every patient receives a device that is technically perfect and backed by a service bench that understands the equipment inside and out. We don't just sell oxygen concentrators; we ensure they perform when you need them most.
— Mark Luther, CTO
Frequently Asked Questions
How long does it take to repair a portable oxygen concentrator?
Most repairs are completed same-day upon receipt at our Rochester lab. Units ship back overnight. Total turnaround is typically 2-3 business days from the time you ship your unit.
Do I need to send my POC to the manufacturer for repair?
Not if you work with Main Clinic Supply. As an Inogen Authorized Service Center, we perform all warranty and out-of-warranty repairs in-house without shipping to the manufacturer.
What brands does Main Clinic Supply service?
Our technicians primarily service Inogen POCs (Rove 6, Rove 4, G5, G4, G3) and can also service units from CAIRE, GCE, O2 Concepts, and other major manufacturers.
Is my repair covered under warranty?
Inogen units purchased from Main Clinic Supply include a 3-year warranty on the concentrator. Lifetime warranty packages are also available. In-warranty repairs are covered at no cost.
What should I do if my oxygen concentrator stops working?
Call 1-800-775-0942 immediately. Our specialists can troubleshoot over the phone. If repair is needed, we arrange shipping and perform same-day repair with overnight return.
Can I get a loaner unit while mine is being repaired?
Loaner units are available for customers with lifetime warranty and select service packages. Call 1-800-775-0942 to discuss your options.
What Customers Say About Main Clinic Supply
Verified store reviews from Shopper Approved.
Disclaimer: This information is for educational purposes only. Service timelines are estimates and may vary. Main Clinic Supply is a factory-certified portable oxygen concentrator service center with active repair certifications for all leading brands, including Inogen. For medical emergencies, call 911.