Question about Panasonic KX-TG4500 Phone

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Panasonic phone KX-TG4500 base not turning on, I have had it for 3 years and all of a sudden it died, like a battery goes off.

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  • smariam Feb 22, 2010

    I found a resultion to my phone by changing the phone cord that is connected to the wall jack. It was defective and the battery would not take a charge. Afterwords I put my old non-working battery back into the system and it worked fine.


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I could tell the base unit was about to go a few days ago. Have had the phone for years with intermittent problems but it has been for quite awhile now. However, the screen on the unit started to blink a bit a few days ago. Had a feeling it was about to go but the phone kept working until this morning when it suddenly dies. After reading that changeing the cord might work, I replace the unit power cord with one from my handset and the phone is working again! Thanks for the suggestion!

Posted on Mar 23, 2010

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I have had the same phone for probably about 2 years with no issues. Then the base (cord to wall plug) started flashing (no problems with handsets) and i could not get a dial tone. Then for no apparent reason it started working again for a week or two. This morning I came into the office and it is flashing again. Now the flashing has stopped but there is no dial tone. I just pushed the speaker phone button and it went to flashing mode (a mode not in the users guide)

Someone mentioned fixing the pc board. Any ideas how to do that yourself?

Bill 423-449-9663

Posted on Feb 16, 2010

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  • billwynne Feb 16, 2010

    Here is the deal with my phone issue. The adapter was defunct. You can
    test that the adapter is bad by taking an adapter from one of the
    cordless handset adapters. Plug it into the base and it should be fine.
    Panasonic wanted to sell me an adapter for $56. I will take a look on

    Hope that works.

    Bill Wynne

  • irassassin Nov 09, 2010

    Bill Wynne, THANK YOU!!!
    I thought the phone was a goner, but tried your suggestion and it worked!!
    I just changed the ac power adapter from the hand held to the base station and am back in business! Awesome. I love the internet for help like this.

  • OahuLasik Apr 28, 2011

    Problem solved!! THANK YOU!! We have also gone through 3 phones (two in storage waiting to be "fixed" and dozens of batteries. I knew there was a good explanation!

  • billandsveta Jun 11, 2011

    Here is a funny one for ya. I just got back from a vacation and the phone was doing it's thing again and I could not remember the solution so I Googled it and found my own post... lol.


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Hi folks, used 2 of the phones for several years now, great phone with a character. The fix with the handset power units is absolutely working and should be tested before one gives up.
Also, I found out that cold temperature does influence or even trigger such outages of the base. We had two and both had a problem with temperatures of below 35-38 degrees. Sounds stange but we use it in a non heated office in the south, but when it really gets cold, the base can fail. Take a heater and
keep it warm. 15min later it works again!
If that and the power supply exchange does not work look deeper for a solution!

Posted on Nov 14, 2013

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I changed the battery and it worked fine.

Posted on Oct 01, 2009

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Fixing the handset link to base unit of Panasonic KX-TG4500

After the base unit died I was able to restore power by switching out the power adapter of one of the handsets with the one on the base unit. However, when the power was restored to the base, none of the handsets that previously worked were getting a dial tone. I could only use the phone from the base unit. To fix the handsets I first reset the base unit by pressing the reset button with the tip of a pen on the bottom of the base phone then momentarily removed and reinstall the battery on each of the handsets to allow each to reset individually. In doing so, I got the dial tone back on all previously linked handsets without having to reregister them.

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The display and the battery light are flickering on my KX-TG4500 base unit, but the phone seems to be working. What is causing the flicking and how do I stop it?

We had a similar problem, but our unit eventually stopped working. We were able to fix by replacing the power adapter. The easiest way to test if this is the problem is to use one of the power adapters from the handsets (they use the same one). If that solves the problem, you just need a new power cord/adapter.

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I work for the Western Regional Day Report Center in Huntington, WV and we are using one of you Panasonic KX-TG4500 phones and Line 1 will light up when a call comes in, but WILL NOT RING. Now lines...

Check to see if the ringing volume is turned down,
On the base unit press the menu button and scroll to ringer settings using the up and down arrow keys, press the enter key.
Scroll down to ring group and press enter.
Press the left or right arrow keys to select the line desired.
press the down arrow key to move to Ext #.
Enter in the disired extension number starting with the base as Ext 0.
press enter to save.

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If the other phones are not working, then I assume the base unit does not have power to it. So check the power supply to make sure it has proper voltage with a volt meter, I think there's a battery pack underneath also to check. Otherwise, you can contact the retailer where you bought for repair instructions.

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I had the same problem once, turned off the base unit from power cord and the phone line and all connected handset units, then turned it back on & it worked.

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