Thanks for the comprehensive info. If it is ok any use to anyone, here's some info about a problem I had with my Automower 420. It is just over 3.5 years old now. For a lot of months it had been intermittently not charging even though it was docked. I had a cheap third party battery in it off eBay. I thought this might be the problem. I paid a sizeable amount of money (as well as a sizeable drive) to get a genuine battery installed by a dealer (apparently it needed a firmware update before it would take the new style battery). It didn't fix the intermittent charging but the new firmware introduced the behaviour above where it would reverse out of the station and say 'charging system problem' (sometimes 'charging station blocked). To cut a very long story short, one of the wires in the charging station, just before where it is crimped and bolted onto the charging strip had basically fallen apart inside the sheathing (so it wasn't obviously broken), and sometimes the 2 ends would touch enough to charge OK (about 88%), and sometimes it would give 0%. Hopefully this is the only problem and it is 100% fixed. If not I'll report back. Thanks again. Also, I have to say I'm not super impressed with Husqvarna. It has given a fair few problems, mostly over the last year and a half, once it was out of warranty. Also the new firmware has introduced a new problem where when it (very occasionally) gets stuck in my rockery and tries to reverse out, instead of stopping after a few seconds it continues to spin the wheels for *ages* (I'm not sure the exact time but looking at the wholes under the back wheels I'd say at least 10 minutes and still spinning before I noticed and lifted it). Dealer says he spoke with Husqvarna and they say this definitely not caused by firmware update (but this is the first time it has done this in 3.5 years of use 2 days after the upgrade). Apparently there is no option to go back to earlier firmware.. Also, apparently the original battery (which was very good) usually lasts more than 2 years, so it may be a good idea not to replace it when it is 2 years old with a rubbish 3rd party battery off eBay.

Great video! I guess the 80% should be measured when the battery has a low SoC. I have a 450x that is well above 80% when low SoC but tapering off as it reaches a higher SoC.

I have this problem after a visit to the dealer who updated the software. It turned out that when I bought a new power supply transformer a few years ago I bought a smaller one than recommended. Not sure how that happened! It worked fine for years (although it would have taken slightly longer to charge but no problem for me) until I got the new software. The only solution was to replace the transformer to the one recommended for my model at a considerable cost. You can turn off the charging safety feature in the advanced menu - but only temporarily. The time before it reactivates gets shorter and shorter the most you use it.

So my 450xh has charge rate of 3256 + 3190 which should be above the 80% of the 7amp transformer. Yet, it's still not docking properly. Any ideas?

@EshlemaniaTV

Жыл бұрын

As explained in the video, if the mower has at least 80% of the required charging amperage (not charge capacity) coming into the main board and showing in the quick info menu, then either the main board or the batteries are causing the issue. In that scenario 99.9% the main board is the issue and not the batteries

Is there any way to improve the cellular antenna on my 450xh? It has a hard time receiving a signal. It worked fine up until this spring??

@EshlemaniaTV

Жыл бұрын

Stanley, take a look at this video that shows how to check the signal strength coming into the mower. This will help you determine if it's a charging station issue or a loop sensor starting to go bad. kzread.info/dash/bejne/pomuttFyXdvIl9I.html

Great content again cheers,, where are you getting this content from ? i training up to be a service technician and have done all the husqvarna study i can get my hand on threw husqvarna University,,, thanks from NZ

@EshlemaniaTV

2 жыл бұрын

It comes from a combination of services bulletins, technical updates, workshop manuals, and mostly just hands on experience. Husqvarna offers dealers a lot of technical info, but it seems like it's easier to understand and follow if it's simplified and you can see how it is applied. I'm a very simple minded kinda guy so I figure if I find a way for me to understand it then I'll probably be able to help others understand it.

@micbic008

2 жыл бұрын

@@EshlemaniaTV kool keep up the videos cheers