Linerar Compressor Refrige detection

This new technology is something our data science team is investigating, particularly with newer Samsung models. Very helpful to know the LG model seems similar. No exact timeline on when something like this may start being recognized by Sense, but know that we’re on top of it!

Thanks everyone

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I’m having the same issue!

I have two refrigerators in my home, an older one, and a newer one. The new one is an LG and has a linear compressor (model: LFC28768ST. After a month in, sense has NOT detected the LG, even though it is on multiple times a day.

I guess Sense doesn’t know how to detect linear compressors yet?? I’m surprised, because pretty much all new french door style refrigerators use this tech, and I bought this fridge over 3 years ago.

Anyways, you can see the difference on the graph below I was able to capture. The first pattern is my old fridge (standard compressor which sense was able to detect in a few days), and the second pattern is the LG linear compressor (sense still has not detected). As you can see, they are totally different.

When can we expect this detection of linear compressors? It’s eating up a lot of power in my house that I’d love to measure!

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You were very lucky that it found your first fridge so fast. It took 9 months to find my 20 year old one, and after 3 months still hasn’t found the new Kenmore linear model.

@BradAtSense, any update on this? Do you know when we can expect linear compressor fridge detection?

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Thanks for checking in @Colatabajonies,

The Data Science teams has narrowed it down to a few different linear compressor patterns, and are starting with improvements to the most prevalent types based on what data we have. It’s a bit hard to tell if the Samsung and LG fridges mentioned in this thread will be covered in the first go round, but the work is ongoing until we’ve figured out ways to catch those other linear compressors. Thanks for your patience in the meantime!

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Well feel free to use my data to see what LG patterns look like for linear compressors! I’ve got months of it!

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Great news, thanks. We’ll keel watching. Since the fridge is one of the larger consumers (even with linear compressors), it would be great to see that.

Also, if Sense had been monitoring my older fridge, it probably could have saved me a HUGE (way more than the cost of Sense) loss when the defrost failed while we were away and both freezer and fridge temps soared. Now we monitor fridge and freezer temps.

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I have a new LG fridge with the linear compressor and it hasn’t been found yet. Found each of my cooktops on the LG stove however. Hasn’t found the LG dishwasher yet.

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I also have the LG (Kenmore label) linear compressor and after four months, nada. It did find the Door Ice unit though…apparently the cruncher is pretty distinctive.

Sense did find my LG fridge the other day. Startup signature is pretty much the same everytime then it settles down to 74watts.

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Just bumping this thread since we took delivery of a new LG fridge today with the linear compressor. It hasn’t shut off since we got it plugged in about 6 hours ago (not surprising since it not only had to cool everything down from scratch, but also re-cool a lot of the previous fridges contents that may have warmed up during the switch) so I haven’t yet been able to see a clean startup-run-shutdown profile yet, but I’m hoping to see one tonight.

Ironically, literally 6 hours after our old 18 year old refrigerator went out the door headed to the recycling centre…I just got a notification on my iPhone 10 minutes ago that Sense had “found a new device!”. Guess what it was? :face_with_raised_eyebrow:

Andy… Others… Got an LG frig. Over the week-end ( I figured it out ) had a Heat 4 device pop up last week. 600 watts. Thought the neighbor was tapping in to our power…Hi hi. Had an awful time figuring it out. Finally, I looked at the UPS on the frig. ( APC)… It has several display screens to look at. With notifications on the Heat 4, I jumped to look at the ‘load’ when I got a notification. 650 watts or so. Must be the defrost mode. Our LG frig is about 3 years old and is the linear compressor model. Most of the time it only draws about 50 to 100 watts when in the cooling mode. It ramps up and down on current draw. Cut our electric bill a bunch when we put it in.

Another thought from reading on the group here… Not sure detection was taking place with the use of UPSs. Have 4-5. Frig, TV, Computer-phones and internet hub. Found the frig on high wattage but been waiting months for others to be penetrated. Gerry

So, now that the Beta is over and I can freely discuss the new smartplug integration (see the specific thread on the topic) I will mention here that I have had our LG linear refrigerator logging via a TP-Link HS110 for about a week or so now.

Although the resulting data does look (at a more zoomed out scale) somewhat like a traditional refrigerator compressor, when you zoom in more the somewhat variable nature of the compressor does start to show, which is without doubt what can lead to detection issues directly with Sense itself.

However, the ground truth data I am now feeding back to Sense will hopefully aid in native detection for others in the future!

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Any concerns with placing the fridge on one of these TP-Link energy smart plugs? We have a new Samsung unit coming Monday and I am thinking about using one on it, but my concern is could it somehow get switched to the off position without my wanting that. Don’t care if a light gets shut off by accident but certainly don’t want to risk that with the fridge.

You can disable the ability to control it (turn it on and off), in the next app release anyways…

The HS110’s also revert to their last known status if there is a power failure as well.

That being said, it’s something that’s between you’re fridge and your power source…

See my replies above. I’ve been using an HS110 on my LG Linear refrigerator since the beta stages of the smart plug integration. It’s working great. Being able to disable the on/off switch in the Sense app added an extra layer of security, and I simply setup an IFTTT routine that sends an “ON” command to the HS110 the refrigerator is hooked up to once an hour. If it ever does get turned off by accident, it’ll be for a maximum of 60 minutes at most…which is a total non issue.

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Blockquote I’ve been using an HS110 on my LG Linear refrigerator since the beta stages of the smart plug integration. It’s working great. Being able to disable the on/off switch in the Sense app added an extra layer of security, and I simply setup an IFTTT routine that sends an “ON” command to the HS110 the refrigerator is hooked up to once an hour. If it ever does get turned off by accident, it’ll be for a maximum of 60 minutes at most…which is a total non issue.

Interesting idea to us IFTTT, can you explain exactly how you did this, I am not familiar with how it works. I am less concerned with the accidental hit in the software, so the ability to disable that does not concern me. I am more concerned with a spurious signal turning it off or the device just failing as it is between the power and the fridge. The other issue I have is the TP-Link plug is about two inches thick which makes it a non-starter for me as it would push the fridge 2" further out into the kitchen.

We have had a LG Linear compressor frig for about 3 years now. The thing that bothered me was when the electric blinked or went out, the temperature settings would go back to a default.So just added another UPS in the house. Most of the time the frig is drawing under 100 watts. Defrost if I remember is around 700 watts ( ‘ave 623 watts per device reading’). This is only 25 per month for 15 minutes. So I put in a 1500 watt UPS. Has the ability to add an addition battery from the outside. Have never used the external battery. Plenty of time to get the generator running when the power goes down…That’s my 2 cents…

Sign up at IFTTT.com. Link your Kasa/TP-Link devices. Then add an Applet:

IF time = Every hour at :00
Then = Turn on TP Link/Kasa “Fridge” (or whatever you named the HS-110 you hooked up to your refrigerator).

Then every hour on the hour IFTTT will send an “on” command to the TP-Link HS110 hooked up to your fridge.

Very simple.

Then explore IFTTT, it’s amazing what you can do with it so far as extending the capabilities of home automation. And yes, there is a Sense Applet as well.

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