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Asked — Edited

Ot: Need Help With Dead Roomba

Hi all,

This is off topic but I know there are a few people here that may be able to help. Please forgive.

I've got a Roomba model 531 and it's stopped working. Completely dead and unresponsive. No light around the start button when it's docked on the charger or when it's pushed to start it cleaning. The charger led light turns on green when the Roomba is placed on it.

I thought it was a bad battery so I bought and installed a new one and still the little guy won't wake up.

Any ideas or am I SOL.

Ah Ha! Sweet! I love it. Cool looking head peace. Is that a towing hitch on the back?
Ha HA, looks like a towing hitch but is in fact a volume control switch connected to a 5 watt mini amp.
This is a great thread Dave. I too have a roomba that died that someone gave me and have been looking at making it an EZ-Robot. I figure I will be going thru the same troubleshooting you just did to get it moving.

Bret, Good to hear from you again!

The replacement of the CPU board is super easy. It cost me about $75 when all was said and done.

If it's just the resistor that's bad then the little guy is surface mounted. I thought it would be a real bugger to replace it but after watching a few Youtube vids it doesn't look too bad. The link provided earlier in this thread gives a few resources of where to buy a new resistor and what to get.

Here's a good vid on working with Surface mounted soldering:

Alright, so I apologizes for bringing an old thread back. However, my resistor on R138 has blown in half and I don't where or what to get. Could someone please post a link or point me in the correct direction for this little guy. Any and all help is very much appreciated.