Author Topic: RM400 Bumper Pressed Message  (Read 837 times)

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RM400 Bumper Pressed Message
« on: August 11, 2014, 03:19:49 PM »
Last week, I replaced the right wheel drive motor and new wheels and solved the problem of the right wheel not turning.

Now every few days, the mower stops (or will not properly leave base) and shows the BUMPER PRESSED message.  I click GO but nothing happens and I cannot reset this message.  I usually move the mower back to the base station and sometimes the unit will mow.   Mostly, I just get the BUMPER PRESSED error.  Any ideas where to start?  I don't have SERVICE CODE - I was thinking I could re-calibrate



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Re: RM400 Bumper Pressed Message
« Reply #1 on: August 13, 2014, 06:48:04 PM »
it sounds like you need to re-calibrate the bumper. it can be a little tricky, because it will ask you to rotate the bumper even that it feels like you cant rotate it, but it will rotate a little bit and that is enough to calibrate.