Q: Has anyone had an issue with the C-arm drifting? The arm will not stay in any position unless you lock it. Is that normal?
A: If you are talking about it drifting down toward the floor, you need to replace the arm, as the gas tubes are weak.
Q: The pump still works well without leaks but the water is not getting hot. I would like to buy a heating element but don’t want to spend the money if there could be a different heat-related issue.
A: It could be the heater or the PC board. Check to see if you have 120 volts going to the heater (red and blue wires). If you have voltage, it’s the heater. No voltage, it’s the board. Also make sure the over temp light is not on and the unit is on a level surface. Also make sure it is pumping water. A lot of complaints I get about “not heating” are because it is actually not pumping any water.
REPLY: Thank you. That is just the info I needed.
Q: How do I enable the message window on the printout? This machine will not print the EKG interpretation.
A: Make sure your MAC5500 has the DIAG option purchased and enabled in system setup/basic system/option activation tab. An asterisk (*) will indicate the DIAG is enabled. (If purchased, you can find the 12-digit option code for DIAG on the silver sticker under the printer paper in the printer tray.) Next, check to verify that your unit is not suppressing the interpretation statement for ECG printouts. This can be found in system setup/ECG/ECG analysis/suppress NORMAL statements (NO) – suppress ABNORMAL and BORDERLINE statements (NO).
A: Check your options. Turn on the unit, click more, select system settings, password is usually BIOMED, select basic system, scroll down to option activation, and when the next window opens, look for DIAG, there should be asterix (*) before it. (If purchased, you can find the 12-digit option code for DIAG on the silver sticker under the printer paper in the printer tray.)
Q: My ventilator is failing to pass a leak test. I have tried to check for possible leakages but I can’t find it. Is there anything I could possibly do to overcome this challenge?
A: That is a common problem. Go into diagnostic mode and select d3. Set flow to 3L/min. Hit manual breath to start the gas flow. Plug the inspiratory port and see if the inspiratory pressure LEDs keep going up until the safety regulator pops open. If it does not build enough pressure, then you have a leak in your inspiratory side. It should be able to build pressure with 1L/Min. If you have a leak you can increase or decrease the flow to see how much you need to pop the safety regulator. That gives you an idea of how large your leak is and where to look. To troubleshoot a leak, increase the highest flow you can get with the inspiratory port plugged and not popping the safety regulator. Then listen and feel around for the leak. You should be able to hear a hissing sound. The inspiratory side is all low voltage so it is OK to feel around with your finger for the leak.
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