Avi's page for iRobot Roomba 5xx power supply mod

How did I convert iRobot Roomba 5xx power supply from 110VAC to 220VAC / 240VAC mains ?
How did I make a US / American iRobot Roomba 5xx power supply to work in European countries ?
How did I mod (modify) iRobot Roomba 5xx power supply from 110VAC to 220-240VAC ?

I my

I didn't want to buy/use a voltage converter for this power supply and since I have some basic
electronics knowledge and soldering skills, I moded this power supply.

* Please note that there are few PCB models for the same power supply,
this page relates ONLY to the PCB model shown in the following images which is of iRobot model #: 17062

This mod is NOT recommended by me
nor by iRobot and will void product warranty !
if you follow this mod, you do it on your own risk !

image of iRobot 5xx series power supply
iRobot Roomba power supply

bottom view of power supply after bumpers & screws removal
iRobot Roomba power supply bottom

image of iRobot 5xx series power supply - bottom sticker
iRobot Roomba power supply sticker

In order to mod this power supply, you'll need to:
A. Disassemble the PCB from the housing

image of iRobot 5xx series power supply - open view with top cover removed
iRobot Roomba power supply open

B. Replace 3 components on PCB:

Needed components:
_Electrolytic capacitor 47µF 400V (marked C1 on PCB)
Note: Take extra care to capacitor polarity when you place it

_Varistor 14D361K , VMax=360 Imax=6000 (marked RV1 on PCB)
- after replacement, it is advised to add a shrink to avoid damage in case of blow

_Time Delay fuse 1.6A 250V (marked F1 on PCB)
_Mains Plug
_For safer and secure operation, cut the US plug and add a mains plug according to the standard used in your country.
The US supplied wire comes without earth wire so you don't need to worry of it.


image of iRobot Roomba 5xx power supply - after the mod
iRobot Roomba power supply mod


C. Assemble the PCB to the housing, make sure the Green led is in place relative to top cover

D. Voila - you now have a working 220-240VAC iRobot Roomba power supply.


Have fun and enjoy your Roomba.

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Last update: Sep. 17, 2015

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