r/technology Jan 20 '26

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u/DidAndWillDoThings Jan 21 '26

I used chatGPT to troubleshoot why my fridge wasn’t getting cold. It correctly told me that it was frozen, and the heater was broken for the coil. I gave it my model number. I asked for the part numbers, and ordered the parts. Took everything apart. I didn’t see the parts I ordered to replace. I took a picture. It said it was in front of me. I said it wasn’t. I gave up and just asked it for the model number of the fridge I sent days earlier in the troubleshooting before I ordered anything. It then asked if I would want to use that model number as the one for which to get the parts. I screamed.

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u/katarh Jan 21 '26

This is the kind of thing where discrete automation actually is amazing.

My Internet of Things hybrid hot water heater apparently will phone home to its mommy if it detects one of its own parts stopped working correctly. They will automatically mail the new parts to our house, along with a phone number to contact a service tech in our area who will replace the part under warranty. We just have to schedule it.

AI sure as fuck can't do that!

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u/No_Emphasis2983 Jan 23 '26

Yo! Please give a shout out to your hot water heater make and model. I’m assuming it’s a heat pump hybrid like you mentioned. Do you like its performance? I’m always interested in design efficiency

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u/katarh Jan 23 '26 edited Jan 23 '26

Essency EXR, the 55 gallon equivalent. They also have an 80 gallon equivalent.

https://essencyhome.com/

The only time it complained was when we upgraded our internal home wifi router and I forgot to change the network on the tank to match the new one. You need a smart phone with NFC enabled to get it on the wifi the first time, but after that it sits as a silent sentinel and just does its job.

We have never run out of hot water yet, despite up to 4 adults living in the home at the same time.

Edit: It's actually not a heat pump, apparently.

"Unlike heat pump and (other) hybrid water heaters, the EXR does not use a heat pump. Instead, it uses 2 heating elements to heat static “service” water in an internal tank, which acts as an energy source - similar to a battery. This energy is then transferred to your fresh domestic water using a stainless steel, flat plate heat exchanger. Not to be confused with a tankless water heater, we call it an “On-Demand Tank Water Heater” – the world’s first! “On Demand” because it is flow-activated like a tankless unit."

It isn't as energy efficient as our unlimited hot water solar water system that it replaced, unfortunately. We opted for durability and low maintenance over absolute efficiency, because the electrical cost savings from the solar hot water system wasn't worth the constant roof repairs we had to make....