J
Joy StewartJul 30, 2025
What to do if Panasonic KX-TD308 extension does not operate?
- LLuis KellerJul 30, 2025
If a Panasonic Telephone System extension isn't working, here's what you can check: * Try replacing the extension card's printed circuit board. * Use a short telephone cord to plug the extension into the same extension port. If it doesn't work, repair the connection between the system and the extension. * Ensure you're using a 2-wire cord. * If you have a telephone with an A-A1 relay, set the switch to the “OUT” or “OFF” position. * Plug the extension into a working extension port. If it still fails, the phone needs replacing. This could be due to a bad printed circuit board, a faulty connection, an incompatible telephone relay setting, or a defective extension.