Today we take a look inside the Gardena R40Li robotic lawn mower and fix the error message: electrical problem 501
, https://i.ytimg.com/vi/NG5vG7-in2I/hqdefault.jpg
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2021-12-10
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Excellent, just what I need, I thought. I could remove some screws and wires and spray some contact cleaner spray. Total failure. I didn't even get past stage 1, to remove the first four screws. Two of them seem to be connected to some rubber-thingy and all that happens when I unscrew them is that the rubber gets twisted. Nothing gets loose. I guess I have to hand the lawnmover over to the repairman after all 🙁
Informative and good. What kind of spray did you use to clean the contacts ?