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2026-05-02•~2 min readGEanesthesia machinespare partsrepairDatex Ohmeda

GE anesthesia machine faults: four problem areas and the original parts that fix them

O₂ sensor, breathing flow sensor, D-Fend water trap and gas sampling line: the symptoms of the most common faults on GE Datex Ohmeda anesthesia machines and how to fix them with original parts.

Anesthesia machines from GE Datex Ohmeda are among the most widely used systems for general anesthesia in medical facilities around the world. Like any complex medical device, they need regular servicing and timely replacement of wearing components.

Under the western sanctions, supplying original parts for GE equipment has become a serious problem for Russian clinics. In this article we look at the most common faults on GE anesthesia machines and explain how to find a reliable source of original components.

1. Problems with the oxygen sensor (O₂ cell)

Symptoms of a fault:

  • •The machine reports a low oxygen concentration error
  • •There is no alarm sound
  • •The O₂ reading is unstable

Causes:

  • •Natural ageing of the oxygen cell (service life 1–2 years)
  • •Contamination of the sensor by aggressive gases
  • •Damage to the sensor membrane

Solution: The original M10 oxygen sensor (part number M10) for GE Datex Ohmeda Aespire and Carestation anesthesia machines provides accurate measurement of oxygen concentration. Replacing the sensor takes a few minutes and needs no complicated calibration.

2. Faults of the breathing valve and flow sensor

Symptoms:

  • •Inaccurate breathing volume readings
  • •Gas leaking through the valve
  • •Frequent false alarms

Causes:

  • •Wear of the silicone valves
  • •Contamination of the flow sensor
  • •Mechanical damage

Solution: GE breathing flow sensors for ventilators and Datex Ohmeda series anesthesia machines restore the accuracy of ventilation monitoring. Original sensors ensure compatibility with every function of the machine.

3. Problems with the D-Fend system (condensate trap)

Symptoms:

  • •Condensate collecting in the breathing circuit
  • •Incorrect gas monitoring readings
  • •Risk of cross-infection

Causes:

  • •The condensate trap is full
  • •Incorrect installation
  • •Use of non-original components

Solution: The D-Fend Pro condensate trap from GE Healthcare is the original solution for separating condensate from the breathing flow. Its single-use design keeps handling hygienic and replacement simple.

4. Problems with the sampling line

Symptoms:

  • •False gas monitoring readings
  • •A blocked sample channel
  • •No CO₂ data

Causes:

  • •A single-use line used beyond its intended life
  • •Mechanical damage
  • •The part does not match the machine model

Solution: Single-use sampling lines for GE Datex Ohmeda ensure accurate gas sampling for the analyzers. Replace the line after each use, or whenever it is visibly damaged.

Where to buy original GE parts under sanctions?

Medicaparts supplies original GE Healthcare parts to medical facilities in Russia and CIS countries. We work directly with vetted suppliers, which lets us offer:

  • •✅ Original parts
  • •✅ Competitive prices
  • •✅ Fast delivery (lead time confirmed with the order)
  • •✅ Technical support when choosing parts

For availability and pricing, contact us on Telegram: @GEpartsV_bot

Conclusion

Regular servicing and original parts are what keep anesthesia equipment reliable and patients safe. Do not save on the quality of components — it can lead to more serious repair costs later.

Sources: GE Healthcare documentation, experience of field service engineers

Frequently asked questions

How often does the M10 oxygen sensor on a GE anesthesia machine need replacing?
The M10 oxygen sensor on GE Datex Ohmeda anesthesia machines usually needs replacing every 1–2 years, depending on how often the machine is used and how it is maintained. Replacing it during the annual service is recommended.
Is the D-Fend Pro water trap universal?
The D-Fend Pro is the condensate trap of the original GE Healthcare design, intended specifically for GE D-Fend and D-Fend Pro anesthesia machines. Use the original part number to ensure compatibility and a proper seal.
What are the typical signs of a failed breathing flow sensor?
Typical signs include inaccurate breathing volume readings, gas leaks and frequent false alarms. They are usually caused by wear of the silicone valves or contamination of the sensor, and replacing it with an original sensor resolves the problem.
Where can I buy original GE anesthesia machine parts with delivery to Russia?
Medicaparts offers direct supplies of original GE Healthcare parts to Russia and CIS countries, with lead time confirmed when the order is placed. Contact us on Telegram @GEpartsV_bot.

Need the part number?

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