iRobot Scooba experience

[mosmos]

what abt in irobot website? or amazon. can use singapore cards?

irobot store need to use google checkout for us.

 

[jc777]

Last nite while charging my scooba (first charge) my 70Watt transformer overheated and the thermal cut off did not kick in which resulted in a blown Scooba power supply/charger. model 13143 for scooba 5990

I just opened the scooba charger and indeed there were burnt marks and blown bits. The whole PCB had become oily (yellow colour oil).

On closer inspection, discovered that varistor RV1 was blown open and F1 was blown to bits (nothing left except legs). The cap of F1 says T3.15A 250V. Is F1 a capacitor?

I am not electronics trained but hv picked up a bit of soldering skills over the years. I would be most grateful if someone here could tell me if the charger is still savageable.

Can I just replaced the blown components and modify the C1 and RV1 to get it working again.

If not, does anyone know if I can buy/replace the charger here?

Many thanks and regards

suffered the same predicament as you. was using singway SW-S3 (80W) transformer and guess it overheated and burnt.

can see that part of the transformer went out of shape and was deformed.

RV 1 blown open but F1 like still retained its shape, dont know if internally spoilt or not. u just need to replace C1 and remove RV1 and everything will work again? need to replace F1 or not?

think as of now, only newstar transformers are more reliable. unless there are cases of overheating also, anybody?

 

[croc1977]

irobot store need to use google checkout for us.

i login to google checkout...got ask info n credit card info......shld put my local address or vpost address?

 

[mosmos]

i login to google checkout...got ask info n credit card info......shld put my local address or vpost address?

google checkout just fill in as per normal using sg address, no need to use vpost one.

 

[croc1977]

there is a columm put shipping address...put local or vpost?

 

[mosmos]

there is a columm put shipping address...put local or vpost?

shipping address put vpost one

 

[hq83]

suffered the same predicament as you. was using singway SW-S3 (80W) transformer and guess it overheated and burnt.

can see that part of the transformer went out of shape and was deformed.

RV 1 blown open but F1 like still retained its shape, dont know if internally spoilt or not. u just need to replace C1 and remove RV1 and everything will work again? need to replace F1 or not?

think as of now, only newstar transformers are more reliable. unless there are cases of overheating also, anybody?

for my newstar 150w
it only abit warm.
its on for more den 2 months 24/7

 

[taligence]

suffered the same predicament as you. was using singway SW-S3 (80W) transformer and guess it overheated and burnt.

can see that part of the transformer went out of shape and was deformed.

RV 1 blown open but F1 like still retained its shape, dont know if internally spoilt or not. u just need to replace C1 and remove RV1 and everything will work again? need to replace F1 or not?

think as of now, only newstar transformers are more reliable. unless there are cases of overheating also, anybody?

I replaced C1 with a 100u400v capacitor, removed RV1 and replaced F1, the latter a fuse that blew.
F1 is a fuse, I wld suggest replacing it with a new one if you do not wish to take any chances.

Happy modding and enjoy he fruits of your labour.

 

[blurrblurr]

yup my newstar did burn but not on the irobot

 

[jc777]

I replaced C1 with a 100u400v capacitor, removed RV1 and replaced F1, the latter a fuse that blew.
F1 is a fuse, I wld suggest replacing it with a new one if you do not wish to take any chances.

Happy modding and enjoy he fruits of your labour.

F1 what ratings? how much to replace all in all?

 

[sAxman_Returns]

so which one exactly to get? so many step down transformers koyak liaoz......

newstar 100W for 1 single scooba enough?

 

[dankoo]

I am using the Super 120W transformer since last Mar with no problem

 

[sAxman_Returns]

where did you buy the Super 120W? and how much ah?

 

[thewiseone]

U can get the Super 120W or Newstar 100/150W from Sim Lim Tower, third floor. I've been using the Super 120W for over a year and its still going strong, powering both my Roomba and Scooba. Should be around S$25 (back then, now u have to check).

where did you buy the Super 120W? and how much ah?

 

[silversurfer]

irobot store need to use google checkout for us.

bought from irobot using DBS amex (black card) using normal checkout.

 

[mosmos]

bought from irobot using DBS amex (black card) using normal checkout.

for the billing address, what did you fill in?

 

[taligence]

F1 rating is T3.15A 250V
I bought the components in KL, but I reckon it shld cost you less than S$5 for a capacitor and a fuse.
Remember to buy the short type of capacitor and to ensure that it fits into the PCB make sure that the legs are the same width as the old one, if not you will have difficulty closing the power supply housing.

BTW, pse also observe the polarity when replacing the new capacitor.

If you can't find 400v capacitors you can also use 450v ones.However, the likelyhood of finding a short 450v capacitor is rather minute. Anyway, 400V capacitors are more prevalent than 450v ones.

 

[sAxman_Returns]

how about getting a replacement power adapter that takes in 240v?

is the connector to the Scooba unique?

 

[dankoo]

U can get the Super 120W or Newstar 100/150W from Sim Lim Tower, third floor. I've been using the Super 120W for over a year and its still going strong, powering both my Roomba and Scooba. Should be around S$25 (back then, now u have to check).

Yep. I also got it from SLT. I got from the basement shop. $30 I think.

 

[jc777]

suffered the same predicament as you. was using singway SW-S3 (80W) transformer and guess it overheated and burnt.

can see that part of the transformer went out of shape and was deformed.

RV 1 blown open but F1 like still retained its shape, dont know if internally spoilt or not. u just need to replace C1 and remove RV1 and everything will work again? need to replace F1 or not?

think as of now, only newstar transformers are more reliable. unless there are cases of overheating also, anybody?

managed to revive the power adaptor by modding.

1. Replace C1 47uf @ 200V to 47uf @ 400V ($1.5)
2. Replace F1 pico fuse to 1.6A 250V ($1.5)

both components gotta from SLT B1-2x (where x = 5 or 6, cant exactly remember). total modding cost = $3 + some time/labour to desolder and resolder.

so far so good after charging for a few hours. keeping my fingers crossed hoping everything will 'soon soon'.