Hamilton Medical Furniture Corp H900
Hamilton Medical Furniture Corp · Model H900
Integrated temperature probe Wall-heated, all-in-one breathing circuits Adjustable temperature and humidity settings Pre-assembled and ready for use.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Not producing humidity / temperature not reached
HighSymptoms: Dry gas to the patient, low airway temperature, chamber not warming.
Root cause: Heater base plate fault, chamber not seated, a temperature-probe fault, or a water-feed issue.
Heater-wire circuit alarm
MediumSymptoms: Rain-out in the tube, heater-wire fault alarm.
Root cause: Open heated breathing circuit or a heater-wire adapter fault.
Temperature probe fault
MediumSymptoms: Implausible temperature, probe-fault alarm, unit will not run.
Root cause: Damaged airway or chamber temperature probe or its connector.
Water chamber / auto-feed fault
MediumSymptoms: Chamber runs dry or overfills, water-out alarm.
Root cause: Float valve or auto-feed fault, or a cracked chamber.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Heater base plate
Class Major service partRel. cost $$$R&R Difficult
Temperature probe set (airway + chamber)
Class Frequent wear itemRel. cost $$R&R Easy
Heater-wire adapter
Class Periodic replacementRel. cost $R&R Fairly easy
Water chamber
Class Frequent wear itemRel. cost $R&R Easy
Auto-feed / float valve assembly
Class Periodic replacementRel. cost $$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Heater base plate | Major service part | $$$ | Difficult |
| Temperature probe set (airway + chamber) | Frequent wear item | $$ | Easy |
| Heater-wire adapter | Periodic replacement | $ | Fairly easy |
| Water chamber | Frequent wear item | $ | Easy |
| Auto-feed / float valve assembly | Periodic replacement | $$ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Not reaching target humidity / temperature
- Confirm the chamber is fully seated and latched on the heater plate and has water.
- Check the airway and chamber temperature probes and connectors; swap in a known-good set.
- Confirm the heated breathing circuit is intact and the adapter is connected.
- Check the heater-wire circuit continuity.
- If it still will not heat, replace the heater base plate.
Symptom: Probe / heater-wire alarm
- Note the exact alarm.
- Try a known-good probe set.
- Inspect the heated circuit and adapter.
- Power-cycle the humidifier.
- Refer for service if the alarm persists.
Documents & Manuals
No documents available for this device yet.
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