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I’m having trouble with my Siemens OP121 display on my fire alarm panel. It seems to be showing some erratic readings and occasionally goes blank. What could be causing this issue?
It sounds like there might be a few possible causes for this issue with your Siemens OP121 display. Firstly, it could be a loose or faulty connection between the display module and the main control board. Check to ensure all connections are securely in place. Additionally, it could be a software glitch or firmware issue. Try resetting the panel to see if that resolves the problem. If the issue persists, it may be necessary to replace the display module altogether. I recommend contacting Siemens technical support for further assistance if you’re unable to resolve the issue on your own.
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