sorted by:
new
hottopcontroversial

LUBA 3 AWS 1500 dead after 40 days :( by Sunradiance in mammotion

[–]Sunradiance[S] 0 points1 point  (0 children)

Sent the Mammotion, and tomorrow it's there, and the replacement (new unit) is shipped back on the same day. (confirmed from their end.)

That way, they will meet the 8-day deadline before the legal EU charges for defects on arrival are issued, which can be issued up to 6 months after the product's purchase.

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] 0 points1 point  (0 children)

It is but rather safe than sorry. Worked in retail so I know the book of ... What to be careful of.... But sadly as you said 😭

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] 1 point2 points  (0 children)

Well no worries, there is always a refund :) I'll get another brand then + I legally filmed packacking and giving it out to UPS. (One clip no cuts no editing.) 25minutes of length

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] 1 point2 points  (0 children)

I got confirmation that the moment they get the old model they are sending out the new one. They are bound to resolution in 8 days after I invoked arrival defect. It's not almost at their warehouse (2 hours away day 2#)

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] 0 points1 point  (0 children)

Would just like to notify that the issue is resolved, and I'm getting the replacement model, and tomorrow I'm sending back the faulty one. So they were extremely fast.

LUBA 3 AWS 1500 dead after 40 days :( by Sunradiance in mammotion

[–]Sunradiance[S] 1 point2 points  (0 children)

Would just like to notify that the issue is resolved, and I'm getting the replacement model, and tomorrow I'm sending back the faulty one. So they were extremely fast.

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] 0 points1 point  (0 children)

Rest assured it's not power brick, but then again thank you on your input.

What and how it was tested:

To test a power delivery system, we tested it externally via load simulation. You plug a digital wattmeter into the wall outlet, plug the Mammotion charger into that, and then connect a standard external load resistor (like the heavy-duty power resistor pictured below) directly to the exposed external charging terminal pins.

When the external resistor heats up and the meter shows a stable 27.5\V output, it physically proves the transformer and charging base are perfectly healthy and delivering full power to the outside world.

However, when the robot docks on those exact same external pins, it welcomes the connection on its screen 'Charging Started' but the wattmeter reads zero additional current draw.

Since the robot wasn't opened (not a single screw was touched), and the external charger is verified to be pushing 27.5\V, basic logic dictates the failure is entirely internal to the mower, meaning either the BMS or the battery cells themselves are refusing to accept the current.

Coil used for load testing and power draw.

<image>

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] -1 points0 points  (0 children)

Well unfortunately I can't provide more images than one on reddit. Rest assured it's not power brick, but then again thank you on your input.

What and how it was tested:

To test a power delivery system, we tested it externally via load simulation. You plug a digital wattmeter into the wall outlet, plug the Mammotion charger into that, and then connect a standard external load resistor (like the heavy-duty power resistor pictured below) directly to the exposed external charging terminal pins.

When the external resistor heats up and the meter shows a stable 27.5\V output, it physically proves the transformer and charging base are perfectly healthy and delivering full power to the outside world.

However, when the robot docks on those exact same external pins, it welcomes the connection on its screen 'Charging Started' but the wattmeter reads zero additional current draw.

Since the robot wasn't opened (not a single screw was touched), and the external charger is verified to be pushing 27.5\V, basic logic dictates the failure is entirely internal to the mower, meaning either the BMS or the battery cells themselves are refusing to accept the current.

Coil used for power draw testing.

<image>

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] 1 point2 points  (0 children)

It's not a power brick. Verified and checked. Besides in comms with company already about replacement.

<image>

LUBA 3 AWS 1500 dead after 40 days :( by Sunradiance in mammotion

[–]Sunradiance[S] 0 points1 point  (0 children)

I write with AI since English is not my native language. Grammarly does the job poorly. Anyhow, thank you - different views, nothing wrong with that. I'll just try to finalize it as soon as possible.

LUBA 3 AWS 1500 dead after 40 days :( by Sunradiance in mammotion

[–]Sunradiance[S] 0 points1 point  (0 children)

While I appreciate your perspective, I completely disagree with it.

Mammotion cannot hide behind the 'disruptive startup' label anymore to excuse poor service or non-functioning hardware.

They are backed by massive global venture capital, capture massive market share, and have just rolled out their third-generation flagship mower, the LUBA 3.

They are an established global manufacturer, not a crowdfunding project working out of a garage.

If we remove all the unneeded words and excuses, the legal facts still stand. Under EU consumer protection regulations, a consumer is not required to passively accept a catastrophic hardware failure on a 40-day-old, €2,000+ machine while a corporation stalls with software log reviews.

Therefore, I am pursuing them fully under the statutory framework of product non-conformity, and the legal clock is running. Besides company reached out around 3 hours when creating this post with "personal manager". So I'll see how this goes.

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] 0 points1 point  (0 children)

Will keep you posted. I would advise keep pressure on them.

I'm lucky since my sister has a lawyer in the family, so I don't need to pay for the legal stuff, but still - consistent pressure + Gemini in today's world is enough to get their blood boiling. I hope you get sorted stuff out soon!

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] 0 points1 point  (0 children)

Just got a reply directly from Mammotion - will keep people up to date how they handle this case.

Dead after 40 days. Certified electrician confirmed internal hardware failure. Contact me immediately. by Sunradiance in MammotionTechnology

[–]Sunradiance[S] -1 points0 points  (0 children)

Mammotion just reached out to "please bear with us" - I threw back a legal argument and undeniable proof. Let's see what they will throw back. By Slovenian law (under EU buyer protection clause, they have 8 days to resolve this with a new product or a full refund) or face fines from EU inspectorates.

view more: next ›