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vel0citylast Wednesday at 6:52 PM4 repliesview on HN

Yeah that there, that's getting to be incredibly uncommon.

And it's not hard to see why.

I had a GE washing machine start misbehaving one day. It would fill the tub, do a few spins to try and balance the load, start to spin up for a few minutes, stop. Try and balance the load, spin for a few minutes, stop. Then eventually just give up, without even draining the tub before unlocking the door.

Me knowing appliances pretty well, I already had the knowledge the service manual is probably tucked away inside the shell. Strike one going against most normal people, they wouldn't know to do that. Open that up, see how to get into the diagnostic menu and translate the error codes and run some tests.

Ok, so now I know it's a speed sensing issue. The speed the motor is reporting and the speed the tub speed sensor isn't making sense for the fixed gear ratio so it thinks there's something unsafe going on. That's a decent safety issue, but looking at the tub as it spins it's probably just a sensor issue.

The tub hall effect sensor was like $20 shipped from the GE parts website. Quick and easy to swap out. No dice, still not wanting to spin up. More reading online, it's likely the main motor inverter board. Well, that's pretty deep in the machine, could also be the motor assembly itself which would be covered under warranty, let me call a GE service guy to come.

Service guy comes, he plugs some wireless adapter into a hidden USB port, fumbles with it for a few minutes with an iPad with a shattered screen, gives up diagnosing the issue. Writes up an invoice proposal for $900 worth of parts and labor for him to swap out a ton of things, or a referral code/discount coupon for me to buy a new unit.

I decline the order. Surely not all this shit is wrong with the thing. I find the inverter board online from a third party site for <$100, was available from the official parts site for not much more. Start unplugging it a bunch, and notice the motor hall sensor pin wasn't seated very well. I don't want to put it all together again just to find reseating/gluing the connection together didn't solve the problem, so I just put the new inverter board in. Put it all back together and it's just fine for <$100.

I imagine it was just a loose connection for that sensor. This is probably still a perfectly functional board on my shelf. I'll keep it and the other sensor in case some other issues happens in the future. But it could have been just a loose connection that sent this nearly $1000 unit to the scrapyard if it wasn't for me bothering to look. It could have been an exceptionally cheap part. And the final fix I accepted was just somewhat cheap part.

In the end people generally don't care to actually fix shit, and I imagine the majority of people would have just thrown up their hands before looking for the service manual, called the tech, he would have made it obvious a new unit would be a better deal, and they would have taken it.


Replies

XorNotlast Wednesday at 10:52 PM

The difficult of dismantling some of these things to fix things is a significant issue though - you have to have the time and interest in a lot of cases, and at the end of the investment might still have a non-functional item.

i.e. if I spend 3 days figuring out my washing machine, I'm trading leisure time (bought at whatever my salary rate is) for the cost of the machine. If the machine is a nightmare to open up and close, then I don't really blame people for just buying a new one.

A bunch of this can obviously be mitigated: right-to-repair is a good start, but we also need incentives for serviceability - the example you give of being able to actually get diagnostic data is one area (IMO: that should just be legally mandated as open-source, make it a national security policy - which it is IMO). Firmware blobs for chips should also be public - i.e. I've got a few things where the microcontroller is dead, I can source a replacement, but there's no way to get a copy of the onboard programming.

And then obviously, if we could somehow encourage design which means components are easy to remove, that would be great (i.e. logic and control boards should always be mounted accessibly).

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cassepipelast Friday at 12:22 PM

I make pretty unambitious repairs as much as I can but I have to say: You are my hero. I was filled with awe and excitement reading you. I guess my weak point is electronics. You inspired me to up my game.

keyboredlast Wednesday at 10:08 PM

> In the end people generally don't care to actually fix shit, and I imagine the majority of people would have just thrown up their hands before looking for the service manual, called the tech, he would have made it obvious a new unit would be a better deal, and they would have taken it.

Is that the conclusion to this whole story?

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dgfitzlast Wednesday at 8:01 PM

I did something similar for a dryer. Even identified the part that failed.

I bought the part-number equivalent part and the prongs didn't fit in the slot. I spent 45 minutes carefully filing down/snipping the prongs to fit the enclosure. Been 5? years without an issue.

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