PB840

Medtronic · Ventilators

Open your document

840 Ventilator System Service Manual

Service ManualOEM officialEN
Open ↗

Nellcor 840 Service Manual

Service ManualArchive copyEN
Open ↗

Puritan Bennett 840 Service Manual

Service ManualArchive copyEN
Open ↗

800 Series Schematics & Parts

Parts ListArchive copyEN
Open ↗

840 Bedside Respiratory Mechanics Option Addendum

Other DocumentOEM officialEN
Open ↗

840 NeoMode Option: Addendum

Other DocumentOEM officialEN
Open ↗

840 Software Enhancements Addendum

Other DocumentOEM officialEN
Open ↗

840 Trending Addendum

Other DocumentOEM officialEN
Open ↗

840 Ventilator System Operator's & Technical Reference Manual

Operator's ManualOEM officialEN
Open ↗

840 Ventilator System Operator's & Technical Reference Manual

Operator's ManualOEM officialEN
Open ↗

Nellcor-Pocket-Guide

Other DocumentArchive copyEN
Open ↗

Operator's-and-Technical-Reference-Manual

Operator's ManualArchive copyEN
Open ↗

Operator’s and Technical Reference Manual

Operator's ManualArchive copyEN
Open ↗

Puritan Bennett 840 Operator a

Operator's ManualArchive copyEN
Open ↗

Puritan-Bennett 840 Reference

Other DocumentArchive copyEN
Open ↗

Stuck? Start here

✅ Check the simple stuff first
  1. Make sure the patient is safe — swap in a backup unit if you need to.
  2. Reproduce the complaint yourself and write down exactly what you see (screen, alarm, code).
  3. Check power, battery, cables, accessories, and settings before ordering parts.
  4. Then open the service manual above and follow its troubleshooting section.
🧰 Common checks for Ventilators (3)

Any technical fault source ↗

  • Ventilate patient by other means first, note code, send for service

Disconnection/leak/loss of PEEP source ↗

  • Check circuit, ET tube and expiratory valve

Flow sensor alarms source ↗

  • Remove water, recalibrate, replace sensor
📞 Still stuck? Call Medtronic

Contact Medtronic US

📞 Tech support
1-800-255-6774
🛠️ Service
1-800-962-9888, option 2
✉️ Email
[email protected]
🕘 Hours
Ventilation: M-F 8am-6pm CT; AC&M (Nellcor/BIS/Capnostream): M-F 6:30am-4:30pm MT

Ventilators: 800-255-6774 opt 4 (tech support/service scheduling), opt 3 (service agreements). Nellcor/BIS/INVOS/Capnostream: opt 1 then opt 2 ([email protected]). Service phone = US customer service.

Source ↗

Missing a manual, code, or fix for this model? Tell us.