Percussionaire Monitron II Waveform Analyzer Recall: Screen Freezes with Ventilators
Percussionaire recalls Monitron II Waveform Analyzers (REF S00015-1) used with ventilators due to screen freezes that may cause display issues during critical medical monitoring.
Lower-risk recall
Note this recall occurred in 2020 and 2021. Reports of screen freeze on visual displays of waveform analyzers that are paired with ventilators. Subsequently, waveform analyzers were serviced to install PAL microprocessor chips and firmware.
Contact the company
What happened, in plain English
Percussionaire is recalling Monitron II Waveform Analyzers used with ventilators because they can freeze on visual displays, potentially causing inaccurate readings during critical medical monitoring. This recall affects specific serial numbers sold in 2020 and 2021. Read more at govinfonow.com/recall/64292-percussionaire-monitron-ii-waveform-analyzer-recall-screen-freezes-with-ventilators.
Source Summary by GovInfoNow · govinfonow.com/recall/64292-percussionaire-monitron-ii-waveform-analyzer-recall-screen-freezes-with-ventilators · Updated August 19, 2026 · FDA enforcement record: FDA #Z-0259-2024
Cite this page
“Percussionaire Monitron II Waveform Analyzer Recall: Screen Freezes with Ventilators.” GovInfoNow, updated August 19, 2026. https://govinfonow.com/recall/64292-percussionaire-monitron-ii-waveform-analyzer-recall-screen-freezes-with-ventilators. Based on FDA recall #Z-0259-2024 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-0259-2024%22&limit=1).
Why it’s dangerous
The waveform analyzers can freeze on visual displays when paired with ventilators, which may lead to inaccurate readings during critical medical monitoring. This issue was reported after the analyzers were serviced to install PAL microprocessor chips and firmware.
Who’s affected
Healthcare professionals using ventilators with Monitron II Waveform Analyzers (REF S00015-1) are most at risk. The recall applies to specific serial numbers sold between 2020 and 2021.
How to tell if you have this one
Check for the Monitron II Waveform Analyzer with serial numbers listed in the recall (e.g., WF21150, WF21159, etc.) that were sold between 2020 and 2021. The product is used with ventilators.
- Brand
Percussionaire- Category
Medical device
What to do — step by step
Check Serial Numbers
Verify if your Monitron II Waveform Analyzer has a serial number from the list provided in the recall (e.g., WF21150, WF21159, etc.).
Where it went and when
Where it was distributed
Distributed in 4 states.
FDA distribution: “US: CA, ND, MS, MD” States read from FDA’s own wording; “not listed” means the notice does not name it.
States: California, Maryland, Mississippi, North Dakota.
Recall timeline
FDA published this recall 3.2 years after the firm started it.
- Firm started the recall
- FDA classified it Class II
- Published in FDA’s Enforcement Report
Dates from the agency record only; steps without a date are left out.
Similar recalls
Latest medical device recalls
Keep exploring
Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: FDA Recall #Z-0259-2024 (September 14, 2020) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-0259-2024 to see it in context.
- Plain-language summary written by qwen3:4b on August 19, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.