How does the mower overload protection work?

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  • Updated 3 years ago
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To prevent damage due to overload conditions, do not try to remove too much grass at one time. Slow down your cutting pace or raise the cut height.Your mower has built-in overload circuit protection. When the mower is overloaded, the power indicator on the mower will blink orange. The mower can endure a short time of overload. You can slow your speed to reduce the load; otherwise the protection circuit will shut off the mower automatically. Release the bail handle, wait for a few seconds and try again.

For more information on the mower lights and the overload protection, this video may help.

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Posted 5 years ago

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David Cline

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Can you confirm exactly how long the reset period is? My mower overloads constantly if I go more than 2-3 days without cutting my thick Bermuda lawn, and the reset time seems to vary from around 2-5 minutes per shutoff.

This constant shutting off is while moving at a snail's pace with a freshly sharpened blade and a clean, dry, silicone-treated deck, and when only removing 1/3" of growth. It easily doubles the amount of time my yard takes to cut, and has become a major drawback of converting to the Ego mower.

Any advice for minimizing downtime due to overloads?
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Ralph

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I run into the same problem. I have an acre of Bermuda TIF lawn that easily overpowers the mower, constantly forcing the mower into overload, which takes 3-5 minutes to clear before I can restart. I tried taking 1/3 less cut for each pass to lighten the load, but the mower is still unpowered. Any thoughts beyond raising the mower height, as I'm just skimming the tops off now. Thanks.
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Evening Ralph. Just out of curiosity, how hot is it outside when you are cutting? My gut feeling is that some of you are getting battery temperature shut downs. Btw, you are cutting an acre with 20" mower. I'm envious, the exercise would meet my weekly walking quota.
(Edited)
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Jacob

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Sharpen your blade. I sharpen mine every time i mow. I mow 1.5 acres. That is the only problem you are probably having. I am going to get a few blades so i can sharpen less often and swap out blades quicker.
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Ralph

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Reply to SCDC,  thanks for the comment.  The temp ranges from 78 - 90 degrees... yes, I think the internal battery temperature shutdown is getting me a lot, but it's not the only problem.  

Reply to Jacob, thanks for the comment.   Just finished sharpening the blade... some degree of improvement, but unit continues to shutdown on either high temp, or motor overload before yard is finished.... I'm adjusting by doing the edging during the temp shutdown, but no answer for the overload shutdown as the unit starts up right away after this type of shutdown.  
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Jun Ahn

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I'm experiencing the same problem. Normal height grass, temp 79 at 5pm. Almost done cutting the grass, and it is overloading. Changed battery, no go. Waited a few min still orange blinking light. Waited 30 mins and I still can't start the mower. This is the second time I have used this mower. Is this normal?
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Trish

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I have had this mower for a little over 3 months and we keep having an overload problem. It has now been sitting without the battery in it in the shed for over 6 hours and it still will not turn back on. Anyone have any suggestions?
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Jun Ahn

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I think it may have to do with the blade motor. It may be overloading because the blade will not turn. At least that's as far as I got with diagnosing mine.
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Jacob

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Hmm. It sounds like you have another issue with your mower. Can you turn the blade by hand? Just to make sure it doesn't bind on something. Customer service is going to have to handle this one. Check the green side locks.
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Jun Ahn

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Yes, when I tried to turn the blade it would move a little then make a grinding noises. Didn't sound good at all.
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Jacob

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Wow. You definately have a problem with your motor. Call customer service, they will get you a new one out right away.
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Kwang

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The overloading problem and moving at a slow past is draining the battery faster than I can completely mow my lawn. What's usually a 30 minute mowing takes about 2 hours with this mower. They should give people who has an Ego mower a free battery for the trouble or a discounted rate on a new one.
(Edited)
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Blue Angel, Champion

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Kwang, you must have a VERY thick lawn!  Either that, or there's something wrong with your mower.  When was the last time you sharpened the blade?
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Kwang

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I just bought the mower to replace my gas one. The grass is not too thick which I mow every week.
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I would bet on a dull blade, or letting the grass grow a bit longer than usual.  I've run into the "red" condition with a dull blade, or cutting very wet grass.  Almost always, sharpening the blade to a razors edge will solve the problem.
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David Cline

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Don't know about others, but I bought a second blade and swap in a freshly sharpened blade each and every time I mow. It's a bit of a chore, but the only way I can make the ego mower work until I am able to replace it with something better.

Ironically, I just cut wet grass for the first time yesterday and it did just fine, never even a flashing warning light. The problem must be how thick Bermuda grows in mid-summer, since cutting completely dry grass with a razor sharp blade is a challenge for the electric motor.

Hopefully this is something that will be addressed in a future 2.0 version. Perhaps a mode selector allowing a choice between more power or longer run time.
(Edited)
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Jennifer VandeWater, Community Manager

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Interesting idea about the mode selector, David!  Thanks for the feedback.
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SCDC, Champion

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Jennifer, I think David hit upon a very simple idea.  I wouldn't mind a shorter run time to get through some very thick areas.  Very nice idea.  Elegant.
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JVA

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Wait, I don't get it.   First use, my LM2101 mower worked fine for 20 minutes under minimally challenging conditions, then went into flashing orange mode, which took some 20 minutes to reset.  Hopefully, I'll have some additional time to test it, but if it bogs down like this, it goes back to the store.  My EGO LM2101 replaced an old Jacobson 24 Volt mower which slowed down under certain conditions but never wimped out like this unit.
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David Cline

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JVA, this post is a year old and it's about the 20" mower. The 21" mower (which is COMPLETELY different in regard to overloading) wasn't even announced yet then!

I'm quite sure we've got more current discussion threads that are specific to the 21" if you search or look around this site. You will probably get more responses from people who have your mower model if you post in one of those.

I now have the self-propelled version of the LM2102SP, and I have not been able to make the mower overload once yet when using the 7.5Ah battery. Do you have the push or self-propelled mower? The 21" push version has a slightly more powerful motor (700w vs 600w in the 20") but the SP has a 1000w dedicated blade motor (not shared with self propel motor) so it is nearly 50% more powerful than the push version.

Also, the battery you use makes a huge difference. While I can't make mine overload with the 7.5Ah battery, the 2.5Ah overloads constantly. The push version typically (perhaps exclusively, but possibly not) comes with a 5.0Ah battery, so it is only middle of the road in terms of load handling.

If you have the push version and are still within the return period, I would definitely exchange it for the self propelled mower. The price difference between the mower kits is less than the difference between the 5.0 and 7.5Ah batteries, plus you get a more powerful (and self-propelled) mower.

If by chance you already have the SP version, I would call Ego support because a well-maintained Ego 21" SP mower definitely shouldn't be overloading that much, if at all!
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Dave .

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Maybe you have a defective unit.  If it's not that big a deal to return to the store, if it were me, I'd return it for refund and try another unit.  I wouldn't even bother with calling Ego as there is nothing they can do over the phone to resolve such an issue for you.
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David Cline

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Definitely call Ego before returning to the store if you're having issues with any Ego product! We've had people here that exchanged multiple times for something that turned out to be operator error. What a waste for everyone!

Perhaps more importantly, I believe someone said that Home Depot doesn't indicate a return reason for returned mowers that are sent back to Ego for credit. So then they have to blindly figure out what was wrong with it (or anything at all, like if someone falsely claims a mower is defective). If you call Ego before returning then they can make a note of the issue for when Home Depot sends it back.

Not taking the time to contact Ego may cause you to unnecessarily exchange a perfectly fine unit, but also will definitely make things harder for Ego's quality control and engineering teams, which ultimately hurts us all!