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Hi all, hope someone can help out here!. I have a LG WM-14225-FD direct drive washer thats developed a strange fault. Couple of months ago the fuse blow out on the PCB, the fuse was replaced with the correct size and all has been well up untill a few days ago. When the machine gets down to the last 2 minutes on the lcd and the washer is about to finish its spin cycle there are several electrical pops coming from the rear of the PCB where the fuse is located and accompanied by a smell of sulfur. It doesn’t trip the main house fuses and it doesn’t do it every time, about 1 wash in 5. Ive looked at the fuse and its connections and all seems OK. It almost seems like there is some sort of power surge coming from the motor and acting like a alternator generating power!. Has anybody heard of this before and any Ideas on how to fix it?.
Lucky Goldstarunfortunately, ive seen this before
it will need a pcb, theres no other problem, and theyre not cheap!!!
Re: LG WM-14225-FD, electrical popping!
Thanks for the reply, a new pcb? even tho it goes through the entire cycle without any problems. I would have thought that if it was the PCB then it would do it every time time as opposed to about 1 in 5?.
Re: LG WM-14225-FD, electrical popping!
There is obviously some sort of component breakdown on the pcb, to cause the popping. You either identify which components are failing and replace them, or replace the pcb as a whole.
Most repairers simply don’t have time to take the first route.
Penguin45.
The fuse is not replaceable and LG advise that if fuse blows that new PCB is fitted as its coated in a waterproof resin.
Re: LG WM-14225-FD, electrical popping!
expertcat!, the fuse is replaceable as its just soldered onto the board. The resin you refer to encloses the rear of the board to a thickness of about 3mm and can be carefully pulled away. Ask yourself why put in a fuse if its not replaceable DOH!.
For the benefit of other people with the same problem the fault is with one of the capacitors with can also be replaced, send me a private message and I will explain which one.
I thought this forum was supposed to help people?, the majority of the posts I have read seem to patronize people and recommend buying a new appliance, or parts from whitegoods for a inflated price!.
Re: LG WM-14225-FD, electrical popping!
Karl999 wrote:expertcat!, the fuse is replaceable as its just soldered onto the board. The resin you refer to encloses the rear of the board to a thickness of about 3mm and can be carefully pulled away. Ask yourself why put in a fuse if its not replaceable DOH!.
For the benefit of other people with the same problem the fault is with one of the capacitors with can also be replaced, send me a private message and I will explain which one.
I thought this forum was supposed to help people?, the majority of the posts I have read seem to patronize people and recommend buying a new appliance, or parts from whitegoods for a inflated price!.
Karl999……just how many regular people that visit this site would have the ability to resolder a component on a board…or even find the board in the first place ?
I find your post quite insulting to the engineers on this site who spend their OWN freetime helping and advising the public on a huge variety of White goods problems.
If you read that many posts , you would realise that we nearly always try and repair rather than replace an appliance. Don’t you think it would seem a little self defeating as repairers to suggest new appliance purchases ?
Well done on fixing your machine but please realise that 90{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} of the people that visit here have no technical ability/knowledge . This is site is invaluable to most and the feedback supports that.
Guess you won’t be needing anymore advice from here in the future then.
Re: LG WM-14225-FD, electrical popping!
I am by no means an expert,i have found this site invaluable and have never found anyone to be patronising.What i do find annoying is the people that ask for help and either ignore the advice given,or continue to question the integrity of the engineers that offer their advice free of charge.
Re: LG WM-14225-FD, electrical popping!
If the likes of karl999 are like the bulk of the general puplic why come on this site and ask.
I work on behalf of the manufactuers like many engineers on this site.
Now the manufactuer has put on a waterproof covering on the machine for a reason to make the pcb waterproof.
By removing the waterproof covering you have now modified the appliance away from the manufactuers specification thus if the machine caught fire who would you go to.
Most likley your insurer but you have modified the machine so I would them presume that you would not tell the insurers this as your insurance would then be null and void. Most of the general public does take notice of engineers.
By all means dig away and solder a new fuse in but dont expect any engineer to touch the machine because all they will do would be to change the pcb. I understand the PCB will be not cheap but then the machines are not cheap either.Re: LG WM-14225-FD, electrical popping!
Although the original poster has his frustrations, it is entirely inappropriate to criticise the techos who troll this site looking to help people. I for one appreciate the efforts they go to for nothing, so forget him, and I say a big THANK YOU to everyone who posts replies here. You’re doing a great job.
Re: LG WM-14225-FD, electrical popping!
Come on guys have an open mind! I joined this forum tonight after reading some rather unpleasant comments. Should I be criticised for being a degree qualified electronics engineer who can repair most boards to component level? The business I ran included advanced electronics AND washing machine/refrigeration repairs/rebuilds. Many members of the public can understand complex electronic information. Replacing capacitors and other components is basic to some of them and believe it or not, they actually own washing machines and have an interest in repairing them when they go wrong. Electronics are electronics, whether the board is in a washing machine, the EMS of a motor vehicle or a television. As for this ‘great’ manufacturers waterproof coating, there are numerous versions of this available from RS and other factors in a spray-can, so please remember that individuals of all technical abilities read this forum. My own criticism of manufacturers is that many of them do not release circuit diagrams and charge such monstrously high prices for replacement printed circuit boards, preferring to sell a new board instead of allowing replacement of a faulty component frequently costing less than 50 pence. My comment is ‘live and let live’ without being critical of others – most are trying to earn a crust, whether are able to just change a board or to actually repair it. That means not treating other professionals like idiots when you don’t know who is going to read the posting.
Re: LG WM-14225-FD, electrical popping!
Diversgold wrote:Come on guys have an open mind! I joined this forum tonight after reading some rather unpleasant comments. Should I be criticised for being a degree qualified electronics engineer who can repair most boards to component level? The business I ran included advanced electronics AND washing machine/refrigeration repairs/rebuilds. Many members of the public can understand complex electronic information. Replacing capacitors and other components is basic to some of them and believe it or not, they actually own washing machines and have an interest in repairing them when they go wrong. Electronics are electronics, whether the board is in a washing machine, the EMS of a motor vehicle or a television. As for this ‘great’ manufacturers waterproof coating, there are numerous versions of this available from RS and other factors in a spray-can, so please remember that individuals of all technical abilities read this forum. My own criticism of manufacturers is that many of them do not release circuit diagrams and charge such monstrously high prices for replacement printed circuit boards, preferring to sell a new board instead of allowing replacement of a faulty component frequently costing less than 50 pence. My comment is ‘live and let live’ without being critical of others – most are trying to earn a crust, whether are able to just change a board or to actually repair it. That means not treating other professionals like idiots when you don’t know who is going to read the posting.
Spectacularly missing the point……… 😕
We cannot advise the public how to component level repair their PCB’s….we are not psychic and have no idea who reads these posts. If you are fiddling with a mains voltage appliance on which you have little or no experience or knowledge, then it would be irresponsible or bordering on illegal for us to tell people how to modify their machines with aftermarket parts. You are also assuming that these “professionals” have calibrated insulation and earth loop testers at their disposal to ensure safety and the ability to use them before and after a repair.
You will know if you have run a business that there is a requirement in HSE law which places a “Duty Of Care” on the individual or company serving its customers. If we give detailed advice and it was incorrect, or the OP made a mistake that resulted in personal injury or damage to property then no Court in the land would consider an “open mind” and the assumption that “many members of the public can understand complex electronic information” to be a reasonable defence. And we are not comfortable to take that risk, sorry.The whole point of whether someone can or can’t fix their PCB is immediately mooted by the fact that no diagrams are available. That is not our fault; we complain about it – but to be fair, if someone wishes and has the knowledge to fix it, they would surely not need to ask us. If you wish to start a PCB repair site and are prepared to take it on trust that everyone reading your advice is qualified, professional and competent, then good luck. But, on balance of probability, the three keywords in that last sentence rarely go together in the real world. It is naive to believe that they always do.
Genuine qualified people who are capable would not be offended as no offence is meant or implied. They would understand and support our position on the grounds of safety. But then anyone “Degree level Qualified” would know and appreciate that more than most……and I do. 😉
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