AC adapter whines/buzzes When I plug in the AC adapter without connecting it to the charger base or the shaver, I hear a high pitched whine. When I plug the charger station into the AC adapter, the status light blinks because I did not plug in the cleaning cartridge and the AC adapter cycles through two different whine tones/pitches synchronized with the blinking status light. Finally, if I put the shaver in the charge station, both the AC adapter and the shaver/charger produce a buzzing sound. Anyone else notice this? AC adapter whines/buzzes When I plug in the AC adapter without connecting it to the charger base or the shaver, I hear a high pitched whine. When I plug the charger station into the AC adapter,... » Read More AC adapter whines/buzzes When I plug in the AC adapter without connecting it to the charger base or the shaver, I hear a high pitched whine. When I plug the charger station into the AC adapter, the status light blinks because I did not plug in the cleaning cartridge and the AC adapter cycles through two different whine tones/pitches synchronized with the blinking status light. Finally, if I put the shaver in the charge station, both the AC adapter and the shaver/charger produce a buzzing sound. Anyone else notice this? « Show Less
1131573
My charger also made a high-pitched whine, but had none of the other problems. After about 6 months the charger broke entirely and I had to pay Panasonic $25 (with shipping) for a new one since it wasn't covered under warranty...
138020
I would recommend a different charger. Mine makes a crackling noise every time I plug it in. It got to the point that I just bought a different one because I was afraid if frying my laptop.
428696
well I never had problem of ac adaptor with mine although I returned the laptop back due to excessive movement of the cursor or would I say the mouse was so fast that it kept on dragging app on the interface when I move it around to click, anyway try check if your ac adapter is working by plugging it to the laptop and check if the laptop battery shows signs of charging by looking at the right hand lower corner screen where battery icon is to see if it shows or says battery charging, if nt then knw the ac adapter is nt working before you can think of replacing it with a new ac adapter.
1328919
I notice zero AC hum or any whine. I would use this again. I will pass on stay clear of tranmittion over AC wiring S/R units---I think Black Box was the one I used. It has a delay and gets hot.good luck
978729
Allen: after using this charger a few times I am disappointed in it. One of the charging stations actually heats up the battery and it starts to leak acid. I stopped using it all together. I was standing next to it and heard a pop after not relizing what it was it took a bit to open the charger and find this is what made the noise. This charges very well but that one station kills the battery. I'm sorry to say I am disappointed to say the least. To answer your querstion it has lights above each charging station and they go from red to green when the batteries ar charged.
1981873
OK!........4 or All of mine are making sequel and crackling sounds when a phone call comes in. I was told to unplug the charger and let it set for 15 minutes and then plug them back in. They are still making large crackling sounds and squeals! Now what should I do because I purchase the 6 set through amazon. The one out in the shop I doubt is a problem so I'm not worried about #6! Up until last week everything was great. Now I'm having problems and I put in new rechargeable batteries but I still get the screeching and scratching noises! Bruce HartogWildwood, FL 34785
949532
I am getting the same thing. It is a buzzing/loud humming noise. Anybody know if this is a defect or if something else can be creating this?
1073593
I have several of the units and there is not a buzz noise only a hmmmm like a fan. I think something must be lose in your unit. I can put mine on silent and I don't hear it at all...try that....if its still buzzing then something is wrong. They are great units.
1025811
They all do it. It's the transformer hum, and it isn't indicative of a problem. Braun should have addressed this design flaw prior to releasing the electronics in this configuration. They should have switched to a different transformer, or at the very least reconfigured the charging circuit.That high-frequency noise drives me crazy, but I have learned to live with it. What really makes me angry is that the "LOCK" button for the shaving head is a piss-poor design, and the pin that locks the cam has broken on me. I am not jumping through hoops with Braun service, so I'll rig an alternate pin. For this kind of money, I expected the same Braun quality I have come to appreciate over the last 20 years. They all do it. It's the transformer hum, and it isn't indicative of a problem. Braun should have addressed this design flaw prior to releasing the electronics in this configuration. They should have switched to a different transformer, or at the very least reconfigured the charging circuit.That high-frequency noise drives me crazy, but I have learned to live with it. What really makes me angry is that the "LOCK" button for the shaving head is a piss-poor design, and the pin that locks the cam has broken on me. I am not jumping through hoops with Braun service, so I'll... » Read More They all do it. It's the transformer hum, and it isn't indicative of a problem. Braun should have addressed this design flaw prior to releasing the electronics in this configuration. They should have switched to a different transformer, or at the very least reconfigured the charging circuit.That high-frequency noise drives me crazy, but I have learned to live with it. What really makes me angry is that the "LOCK" button for the shaving head is a piss-poor design, and the pin that locks the cam has broken on me. I am not jumping through hoops with Braun service, so I'll rig an alternate pin. For this kind of money, I expected the same Braun quality I have come to appreciate over the last 20 years. « Show Less
777949
No I have not heard it, mine is silent, though I have yet to use it for long periods. I don't think it's normal, but if it still does what it says on the pack it's ok.If it's not broken don't fix it!
780040
I agree with nodzurc, I'd check the batteries. Mine developed a hum when the batteries started to fail. I tested with a set of non-rechargeable batteries before I bought a set of rechargeable batteries. Danger Danger Danger...when testing do not put non-rechargeable batteries on the headset charger. The batteries may burst and ruin your headset.My son ruined my battery charger by attempting to recharge non-rechargeable batteries. I'd imagine it would deliver the same results from the headset charger.
202540
Did you ever get an answer? Mine appears to be buzzing all the time too - I agree. Extremely annoying.
1370317
it does make a rather high pitched buzzing sound. that is actually the "ultra sonic" cleaning. make sure that you push the start button.
897163
Malfunction. Chargers should not be making any noise. Mine definitely doesn't.
1910161
i have had about 8 1kw or larger ups and the only time they "buzz" is when they are charging a depleted battery. i would unplug it and leave the load connected and see how long the battery last. if it dies in short period of time then probably there is a problem and the unit is charging all the time. it should go into charging mode very seldom because the load is normally not off the batteries and on the power line. the battery should stay charged and not need charging.
566164
lThe unit will make a high pitched sound when it needs to be cleaned, but my suggestion is, while you are dusting or at least once a month take the unit and clean it too. I am delighted with this product, and when you do clean it do it with a damp paper towel, you will notice that it will be BLACK, and be sure to clean the little filter at the top too. Don't touch the black crap, it's like printer toner and is hard to get off.
555667
Yes mine did as well. It made a buzzing noise and got hot as well. I just stopped using it. It is a very poor product and I will not be ordering anything from them again.