Q: I have a Secure II bed that any time you press an articulation function, the bed automatically raises to the high position, even if I remove my hand from the footboard. The bed will just continue to rise on its own to the highest positions. I am guessing it is a limit switch somewhere. Any suggestions?
A: Disconnect your side rail cables. It sounds like you have a stuck key.
Reply: Thank you for that response. The bed will go down while operating the down button, but when you release it raises back up. In fact, if I take the cowl off the underside of the bed it will stop going down if I press the down limit switch, but then the bed goes back up, even without touching the controls.
Q: What would cause the left/right arrow keys on display to not work? I can turn on the embedder and can turn on into service mode. All buttons seem to work. The light turned on when pressing the “light” key and all double beeped. I can’t move the cursor left or right to select the test run, I can only select “program version” because that is where the cursor starts when turning it on in service mode.
A: “All buttons seem to work.” Including the arrow keys? I would try cleaning the contacts on the flat flex cable from the front panel, and carefully reinserting it into the connector on the main board.
Q: What does error code (Errnum) 1818 pertain to? Sym code ENCB
A: Encoder B error. I’d check the encoder connections, verify that the volumes haven’t fallen out of calibration to that on the display. Make sure there is no contrast leakage onto the power drive card.
Q: I have a Puritan Bennett 840 ventilator and the touchscreen stopped working. The display is working only the touch is not. I checked the cable assembly touch frame and it does work. Where else should I start looking for the problem?
A: Screen lock key. It may be activated. Try to disable or try cleaning the screen with alcohol-free liquid.
Reply: The screen lock key is not activated. I cleaned it and it is still not working.
A: You need to replace the GUI touch board, if it’s not working after cleaning. Make sure no stickers or damage is on the screen or black housing.
A: The touchscreen board is a square board that is held on with plastic pins. Also check the ribbon cable. The newer boards have a different ribbon cable than the old ones. That causes issues as well. A defective keyboard can also cause issues that may look like a touchscreen as mentioned above. Test it before putting everything back together.
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