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Read articles โThis is a specific diagnostic correction: the creator initially bought an aftermarket voltage regulator (and even modified it to fit), but found the real culprit is often a small relay behind the regulator that controls battery charging. The video walks through disassembling that relay, showing the worn contactor causing failure, and recommends buying the under-$15 relay instead of a regulator. Useful for JD 2210 owners troubleshooting a no-charge condition before spending money on the wrong part.
Posted by the Randy's DIY channel, an owner sharing a hands-on repair discovery from personal trial and error.
It is likely not the voltage regulator. A small relay mounted behind the regulator often fails due to a worn contactor on its coil, causing the no-charge condition.
No. The creator found an Amazon regulator did not fit correctly and had mismatched wire colors, even though it looked identical to the original.
The relay mounts right behind the voltage regulator and controls the battery charging function.