Samsung SR8849 no power

News and information about the Samsung Navibot, Tango, Furot and VC series Robotic Vacuums. All discussion and troubleshooting questions go here.

Samsung SR8849 no power

Postby zekicker » December 9th, 2016, 7:36 pm


My robot does not power on and does not charging when on the base and the green light is on.
I can heard a clicking noise from the base I think.
I change the battery.

I didn't see dry joints from what I see.

Can you help me to investigate ?

Posts: 1
Joined: December 9th, 2016, 6:57 pm

Re: Samsung SR8849 no power

Postby Elektronics » August 25th, 2017, 12:10 pm

Your main board is done if it clicks. Main Board was overheated because of battery charge.
90 % of all failures on the navibot's is the main Board getting overcooked



Those images is from a Navibot that click and no light in display what so ever
Posts: 2
Joined: August 25th, 2017, 11:14 am

Re: Samsung SR8849 no power

Postby machj » October 19th, 2017, 12:00 pm

Look at this:

viewtopic.php?f=22&t=18485&mobile=on ... oblem.html (read a discussion) ... ic&t=70660

It could be a power switch, 8 MHz resonator (try to replace or add a 22-60pF capacitor as described under the video) or you can replace a capacitor CE1 ...

I have the same problem, SR8845 is in a service now. I expect that the result will be "wrong motherboard, buy a new one" - but it could be repaired with a cheap capacitor as mentioned above.
Posts: 1
Joined: October 19th, 2017, 4:14 am

Re: Samsung SR8849 no power

Postby styxxx » January 14th, 2019, 4:15 am

Could you solve the problem?

My SR8825 has the same symptoms. I checked the main board, no visible damages. Main switch is fine and I was able to meassure voltage on the board (voltage matches the markings, saying 3.3, 2.8 and 5V). But I don't know what else to test.

The station ticks every 1 sec and drops the voltage. Even if I remove the battery.
Posts: 2
Joined: January 14th, 2019, 4:09 am

Return to Samsung Robots

Who is online

Users browsing this forum: ASTMedic, BCCISProf, BrettS, dariuszbednorz, johnnyh, Miles267, vicdeng and 374 guests