Ok mine is not working at all I have tried everything
1762849
I had to hold the battery firmly against the exposed contact coming from the lcd display part of the tester. I inserted the battery just as I would put in into the hearing aid. It takes a couple of seconds for the true battery condition to register. If you just insert it and then release, the battery will show as full charge. If you hold it for several seconds, the actual condition of the battery will show. Whenever my hearing aid shows low battery, this tester confirms that.
1762850
My battery tester works fine. Making sure the battery is laying on the flat metal area than pushing it against the metal wire-like strip should give you a read out. If no action, request a replacement.
1762851
Mine came with no instructions but I am not so sure mine is working either. Not so sure any of them work.
1762852
battery should be placed so that the side with the black ring is facing down, and push toward the LCD display as far as it will go. The display will show a "bar graph" indicating the current condition of the battery.
1762853
Are you inserting the batteries correctly? If not contact Amazon to arrange to send it back for replacement. Mine works fine.
1762854
Mine is working just as it is supposed to operate. Make certain that you have the battery to be tested positioned with the positive side (+) up.
1762855
The hearing aid battery tester did not work on my batteries. I returned it.
2114577
I am sorry that I am no help. Mine didn't even work... So I guess you're lucky that yours does something rather than nothing, right? Lol
50388
Mine is not working at all, also. I can't make it produce any sound. Tried to contact harmanKardon.com. No answer from them..
688791
Read the instructions and make sure everything is being hooked up properly. If that is not working I would try a new battery or send it and exchange it. I have had zero problems with mine so far. I hope this helps.
2284446
I'm sorry to tell you mine did not work at all. I gave up. I hope you have better luck.
656353
Good luck. I never got mine to work either after trying lots of things. Fortunately I contacted Amazon and was given my money back.
2148773
mine did not work either. I contacted them and they said that they would send me a return label but could not find my email address after they sent me the answer. I will never buy from them againgood luck
879746
When you plug something into it and it does not work try resetting it. If that does not work try replacing it.
1706300
Try removing the battery and reinstall it...mine stopped working after few days and that worked for me.
1371908
I just installed mine and have the same problem. Did you find the solution?
313272
I think something is wrong with the installation. Mine worked straight away, try re installing the screen allover.
864213
Have you turned it off and let it for 20 minutes and turned it back on to reset it? If that doesn't work, please check your owners manual and call them . You may have a defective unit.
124754
No, mine is working fine. And I use it all the time. I hope you can get it working well. Good luck.
777096
I really have no idea why. Mine has been working perfectly from the start. Good luck to you.
2257322
Yikes! Mine still works. Contact the seller - they should be responsive. Good luck!
556999
I wish i could help, but guess what? I have the very same problem and mine is pretty new! If you get them to connect please let me know so i can try my luck.
2090828
Send it back. I haven't had any problems with the one I bought. Sorry yours doesn't work.