Cincinnati Sub-Zero Hemotherm 400MR
Cincinnati Sub-Zero · Model Hemotherm 400MR
Efficient Heating/Cooling Dual reservoirs double your efficiency Independent cooling and heating reservoirs permit instant changeover from one bath to the other Each reservoir has its own control mechanism and temperature display The efficient pump produces a flow rate higher than any competitor's units The Hemotherm lowers reservoir water temperatures at a rate that rapidly produces a significant reduction in blood temperature Built-in secondary Hi and Lo safety thermostats and an external circuit breaker which can be reset to enhance the safe design of Hemotherm® Ice is not required with this system, eliminating mess and providing simple setup For additional convenience an optional remote control is available to change and monitor settings of the Hemotherm® from a remote location. Microprocessor control provides easier, more accurate operation Large LED readout allows monitoring at a glance Eliminates need for calibration Mechanical refrigeration means easy set-up, quick response, and minimum clean up
Key tips
- ·Never skip temperature-accuracy verification to save time - it's the one check that directly prevents burns.
- ·Hose/blanket connector wear is the most common real fault and the easiest to miss on a quick visual check.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Heater / element fault
MediumSymptoms: No heat, overheat alarm.
Root cause: Element or thermal fuse failure.
Temperature sensor drift
MediumSymptoms: Setpoint error, alarm.
Root cause: Sensor aging.
Fan / airflow failure
LowSymptoms: Uneven warming, hotspot.
Root cause: Blower wear.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Blower fan
Class Periodic replacementRel. cost $$R&R Fairly easy
Temperature probe
Consumable per patient.
Class Periodic replacementRel. cost $R&R Easy
Heating element / thermal fuse
Common R&R.
Class Periodic replacementRel. cost $$$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Blower fan | Periodic replacement | $$ | Fairly easy |
| Temperature probe Consumable per patient. | Periodic replacement | $ | Easy |
| Heating element / thermal fuse Common R&R. | Periodic replacement | $$$ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Hose / blanket connector inspection
- ·Temperature-accuracy verification
- ·Annual electrical safety test
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Heater / element fault
- Confirm the presentation - typically no heat, overheat alarm - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: element or thermal fuse failure.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the heating element / thermal fuse per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Fan / airflow failure
- Confirm the presentation - typically uneven warming, hotspot - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: blower wear.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the blower fan per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Technical Specs
- Height
- 32 in
- Length
- 22 in
- Weight
- 198
- Width
- 22 in
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating Room
- PACU
- Emergency Department
- Labor & Delivery
- NICU
Documents & Manuals
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
Evidence supports that when customers performed a fuse replacement as part of a March 2017 field action, the fuse clips became stretched and were no longer mechanically tight with the fuse, creating a host spot that led to discoloration on the board due to overheating and shut down of the device.
- RECALL
Potential for membrane (control panel) switch errors leading to an inability of the device to change control settings or an unintended change to control settings.
- RECALL
Due to FDA's safety communication relating to nontuberculous mycobacteria (NTM) infections related to heater/cooler devices, an updated Instructions For Use includes a more robust cleaning & disinfection procedure.
- RECALL
Improperly rated fuses were used in the manufacture of the device.
- RECALL
The device may not maintain water flow or temperature control.
- RECALL
Reports that the Rectal/ Esophageal Temperature Probes are not reading correctly. This situation causes the Blanketrol device, which the probes connect to, to shut down operation and display a 'check probe' error.
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