M
Martin JohnsonSep 7, 2025
What to do if Hico Medical Systems Medical Equipment displays alarm and display message: “CHECK UNIT” “UNDERTEMPERATURE”?
- LLuis YoungSep 7, 2025
If your Hico Medical Systems Medical Equipment displays the alarm message “CHECK UNIT” “UNDERTEMPERATURE”, it may be because the unit is too cold (less than 9°C), there is a sensor break T2, or the water tank is frozen. Allow the unit to warm up at room temperature for a while. If the water tank is frozen, let the unit defrost and examine it for frost damage to see if water is flowing out.