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Microwave spontaneously turned on by its LED display

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Re: Microwave spontaneously turned on by its LED display

#91
post #77
post #75

Earlier quoted context omitted.

Well, they use also tons of carbon instead of iron/aluminum to lower weight, so that price may be justifiable. Maybe.

Well sometimes yeah, and then there is the nylon strap instead of a handle on the door for your $300K car.

Real badges replaced by sticker badges for aerodynamic drag / weight had me laughing just a BIT more than the flagged 'door handles'.

Re: Microwave spontaneously turned on by its LED display

#92

We recently got rid of a four year old microwave where the magnetron turned on spontaneously and silently when the door was closed, runaway heating the box. Control panel, lights, turntable, fan, everything is idle. Manufacturer didn't consider this an interesting defect and refused to swap out-of-warranty. The lack of give-a-shit in appliances is becoming apparent.

>The lack of give-a-shit in appliances is becoming apparent. Because most budget name brand kitchen appliances are just rebadged Haier/Midea OEM designs. I know HN has a hate boner for Samsung and LG appliances but for me they seem to be the most trustworthy budget appliances since at least they have their own designs instead of rebadging Chinese OEM ones like the rest. Sure, if you have money you can go with a reput…

I dunno about the fawning over Bosch. My Bosch induction cooktop performs far worse than the half price GE Profile cooktop I had at my previous house. The Bosch does not heat evenly at all - almost all energy is focused in the center of the pan. I'm hating it so much I'm about to rip it out and replace it either with another GE or an LG. My mom got an LG induction range and I took my largest pan over to her house, put in a few inches of water and turned it on high - it produced even heating/bubbles across the entire pan, something the Bosch just doesn't do. Feh. I wish I would have done that test before buying the overpriced and underperforming Bosch. Talk about coasting on your brand name.

Re: Microwave spontaneously turned on by its LED display

#93

Earlier quoted context omitted.

I opened my microwave and cut the piezo buzzer out with wire cutters. I have never regretted doing my "silent microwave mod".

Why do manufacturers still release products like it's 1980. I can hear when it's done, because the unit has turned off about when I expected it to. My combo microwave/air fryer beeps if you take food out and close the door before the timer is finished, like it doesn't know what to do now.

My Breville toaster oven has three beep settings: incredibly loud, ear-splittingly loud, and off. It still runs the fan when the timer is done for a while too, so there’s no good indication there. So annoying.

Re: Microwave spontaneously turned on by its LED display

#94
post #63

Earlier quoted context omitted.

>The lack of give-a-shit in appliances is becoming apparent. Because most budget name brand kitchen appliances are just rebadged Haier/Midea OEM designs. I know HN has a hate boner for Samsung and LG appliances but for me they seem to be the most trustworthy budget appliances since at least they have their own designs instead of rebadging Chinese OEM ones like the rest. Sure, if you have money you can go with a reput…

> Sure, if you have money you can go with a reputable brand like Bosch & Siemens Just FTR they're exactly the same -- "BSH Hausgeräte GmbH" -- with just a different label on it. ... And I didn't have a single good experience in the last years, IMO they're designed for planned obsolescence. E.g. my premium Bosch Hand mixer broke after 2.5 years. Afterwards I bought a >35 years old used RG28e for half the price and it'…

Interesting that you had to resort to a product of communism to overcome these planned obsolete devices that capitalism is producing.

Re: Microwave spontaneously turned on by its LED display

#95
post #42

There exists only one correct design of microwave ovens. It has zero ICs. It has exactly two direct user-inputs and one indirect. The two dials select on-time and duty-cycle (cooking time and "power"). The third input is the safety switch which deactivates the cycle when the door opens. This design is the most userfriendly, the most economic and the most reliable. This is the hill I will die on.

Don’t forget a physical handle to pull open the door.

I’d take a steam sensor as well.

Thanks to Technology Connections, great channel. Convinced me to read all the fine print until I found a Breville that had it. https://youtu.be/UiS27feX8o0

Re: Microwave spontaneously turned on by its LED display

#96
post #81

Interesting that he thinks the clock would be better with a 32kHz crystal than with monitoring the 60Hz power frequency. The power line frequency is very tightly regulated over the long term, and should have an overall better accuracy.

> The power line frequency is very tightly regulated over the long term, and should have an overall better accuracy.

It depends on your country. I've heard of this being the case in Europe, but here in Brazil, as far as I could find there's no "long term regulation" of the power line frequency. Which makes sense to me; it means the power network operator doesn't have to artificially deviate from the correct power line frequency in an attempt to "compensate" for a past deviation.

Re: Microwave spontaneously turned on by its LED display

#97
post #15

Earlier quoted context omitted.

The thing is, the superior way to reheat something would usually be a lower power level. But not the standard "turn on - turn off" cycle that most microwaves do. Actual lower intensity microwaves. You need an inverter for that. The food would heat more evenly, which is especially useful for things like butter that are prone to splattering.

Pulse width modulation works just as well if the pulse width is short compared to the overall cooking time. And not having an inverter makes it more efficient. Unfortunately lots of cheap microwaves have a pulse width which is more than 10 seconds, presumably to help lifetime reliability, but means that for cooking times less than a couple of minutes it doesn't work well.

I once used a very expensive wolf brand microwave that would always run the magnetron for at least 10 seconds regardless of the power level setting. So if you set it to do 10% power for 10 seconds it would actually do 100% power for 10 seconds. I'm kind of shocked that their QA didn't catch this, if nothing else it should refuse to run at reduced power settings for times under ~100 seconds.

Re: Microwave spontaneously turned on by its LED display

#98
post #62

Earlier quoted context omitted.

It would be like thermal burns but deeper. The heating is more diffuse and deeper than traditional cooking methods so I'd imagine if you did get a burn, it would go deeper into the tissue than you might expect.

https://www.youtube.com/watch?v=3hBRxwQXmCQ This guy recklessly tested various way of getting irradiated by a microwave to see what the effects are.

An extremely irresponsible video. He talked a lot about scary apocrypha to do with eyeballs exploding but never once mentioned the possibility of vision damage or blindness without the drama. I think he knew that microwaves are extremely dangerous to your eyes and avoided doing the most potentially damaging things without talking about it. To whit:

If you bypass the door interlocks and operate the magnetron with the door open and then stick your head into the cavity, you risk have your eyes pass through one of the microwave peaks in the standing wave pattern set up by the cavity. Extremely intense, localized heating within your eyeballs is never a good idea, and you risk burning your retinas or damaging your corneas or lenses.

The eyeball is large made of water and protrudes somewhat from the eye socket. Peering forward into the interior of the microcave cavity has the potential to expose your eye to the full brunt of the standing wave peak without much other body mass in the way to absorb the energy, creating the potential for that intense localized heating.

Re: Microwave spontaneously turned on by its LED display

#99
post #40
post #16

Earlier quoted context omitted.

The commercial microwaves we have at work have both a large dial to set the time, and four large buttons under it for 25%, 50%, 75% and 100% power. No other controls. They are great.

If the power level buttons were an old school radio button that would be so cool

That's my microwave, I don't remember which brand right now but it was just one of the cheapest at Mediamarkt. It has one mechanical dial for time and one dial for power. It works fine.

I've never had a problem finding such models. My previous microwave is similar and was also one of the cheapest I could find then. It's about 10 years old now, and now sits at work because we didn't need two of them at home. It's next to an older one at work that is also similar and is probably around 15 years now.

Re: Microwave spontaneously turned on by its LED display

#100
post #92

Earlier quoted context omitted.

>The lack of give-a-shit in appliances is becoming apparent. Because most budget name brand kitchen appliances are just rebadged Haier/Midea OEM designs. I know HN has a hate boner for Samsung and LG appliances but for me they seem to be the most trustworthy budget appliances since at least they have their own designs instead of rebadging Chinese OEM ones like the rest. Sure, if you have money you can go with a reput…

I dunno about the fawning over Bosch. My Bosch induction cooktop performs far worse than the half price GE Profile cooktop I had at my previous house. The Bosch does not heat evenly at all - almost all energy is focused in the center of the pan. I'm hating it so much I'm about to rip it out and replace it either with another GE or an LG. My mom got an LG induction range and I took my largest pan over to her house, pu…

Which model did you get? IIRC their slide in units are actually made by Bosch, but the standalone ones with the physical dials are actually made by another company, and were generally considered worse.
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