Some malfunction on the control of defrosting. Or maybe it’s powered by Peltier elements.
Comment on Don't let it stop you from eating your egg salad sandwich, Karen!
Neato@ttrpg.network 2 years ago
I’m trying to figure out what kind of defect would cause that. The heating elements of a fridge, the air exchange that has the hotter refrigerant, are all outside the box I believe. If the compressor fails, the refrigerant doesn’t move and doesn’t move heat. So it’d just be an insulated box, right? I think that’d get hotter an ambient but I’m not sure I’d say it’s “heating”.
marcos@lemmy.world 2 years ago
gnate@lemmy.world 2 years ago
Thermoelectric was my first thought, since it can heat or cool, to maintain a set point, warm food, or chill beverages, as implemented in some fancy lunch boxes. I didn’t know if the same applies at this scale, but I’m assuming this unit uses a compressor.
marcos@lemmy.world 2 years ago
Something of this size should absolutely use a compressor.
But there’s a difference between “should” and “does”, and the fact that failed into heating changes that expectation a lot.
usualsuspect191@lemmy.ca 2 years ago
I’ve seen this happen when the condenser coil is outside and during electrical work to the building the phases were swapped so the unit essentially ran in reverse.
Revan343@lemmy.ca 2 years ago
That can only happen on 3 phase though, which a small fridge generally is not
usualsuspect191@lemmy.ca 2 years ago
Correct. The picture is not great, but you can see the racking that implies there’s at least one other door so this could be a larger commercial fridge running 3 phase
Revan343@lemmy.ca 2 years ago
Oh yeah, looking closer I think you’re right
where_am_i@sh.itjust.works 2 years ago
just install the compressor in reverse and done you got a heater.
Neato@ttrpg.network 2 years ago
Yep. But you can just install a valve for the refrigerant and that’s how you get a selectable heat pump.
EdibleFriend@lemmy.world 2 years ago
Clearly it’s tapped into an alternate dimension of pure heat.
moody@lemmings.world 2 years ago
If the compressor dies but the evaporator tray is still heating, it would definitely cause the fridge to warm up.
HikingVet@lemmy.ca 2 years ago
Also if the TXV goes it could cause that.