Nevadent Lidl Tooth Irrigator Disassembly Guide: Comparing with Panasonic DentaCare EW 1211

Question

Irrigator, from the bottom side, after removing the cover visible in the attached photo. Unfortunately, I don't know where the next fixings are. In the upper part visible a white cap with a slot and a hole in the blue, rubberized part of the handle.
Does anyone age like to disassemble this device?
I will be grateful for repair information.
r.

PS. irrigator is very similar to Panasonic DentaCare Handy EW 1211

kamk88 · Answer

From the top in the housing there is another screw that holds everything. Just unscrew it and slide out the electronics from below.

I have a request because this irrigator also failed me and I need the markings of the capacitors - unfortunately mine burned and I have no way to read the markings. If you could check your markings, I would be very grateful.
I attach a photo with their location.

ropi · Answer

For me, a small, rectangular element above the screw, probably mounted on silicone, completely blocks access to it. Did you remove it before removing the screw? How? r.

kamk88 · Answer

I did not peel off anything, I slightly tilted this rectangular element and I could easily unscrew the screw.

ropi · Answer

Here are my photos - unfortunately it is already dark and they are not the best. There are no markings, but the elements you indicated have 3 feet and a symbol Q - they are transistors.

ropi · Answer

Unfortunately, for now I have to capitulate. I checked that the battery was almost empty. Transistors are probably actually damaged. Unfortunately, you will probably need to recreate a fragment of the diagram from the print to determine how it should work, and I don't have time for it yet. It is a pity that the Panasonic service does not contain the diagram - the entire electronics module is treated as a part for replacement.
r.

kamk88 · Answer

After unscrewing the efficient irrigator, I was able to check that the transistors have the designation A29T

TONI_2003 · Answer

That is: A29T = AO3402_SOT-23_ (Transistor: N-MOSFET; 30V / 3.2A / 0.9W

power_pc · Answer

Or maybe someone knows what function the additional engine placed in the upper part with the designation SP16-050 performs It drives nothing, the motor shaft is not connected to anything!

walmich · Answer

It looks exactly the same for me, it worked until the first discharge and probably was inserted, turned on and charged. You handled? Because when it rains so it is probably not worth playing with it? Added after 24 [minutes]: It can be peeled off and calmly folded later, it was impossible to move away with me.

lipek535 · Answer

Gentlemen, what's the battery inside? I don't think it's fair for exchange ..

ropi · Answer

I dropped the topic because Lidl accepted the complaint without any problems and I bought three more. After three and a half years, all three are closed and the complaints have also been recognized. Only one of them shows some signs of life - turns on and quietly squeaks, but of course does not pump water.
Has anyone managed to work out the topic and achieve any success in repair? Of course, it's not worth buying this scrap (and probably clones), but since there are already a few broken pieces ...
r.

HashMap · Answer

Mine failed after a week. I took off the bottom cap and put it on the Braun toothbrush charger. And it charges. So the charging module failed. Which looks unrepairable. This seems to be a common problem as I’ve seen a lot of comments about not loading.

ropi · Answer

Unfortunately not in my case. I already have several chargers ... I suppose that the chargers fail when the mains voltage changes, which has been happening a lot lately.

Nevadent Lidl Tooth Irrigator Disassembly Guide: Comparing with Panasonic DentaCare EW 1211

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