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Re: Bosch SGS model with plastic sump
Checked the top – power switch, interlock and module…. Still coming up low insulation.
Wondering if the mains lead is the problem?
Not wanting to plug the machine in and see what happens as that would be foolish.
Oh yes my insulation tester is working perfectly well as I checked it against other appliances.
Re: Bosch SGS model with plastic sump
I have let the dishwasher dried out and it is still coming up 0.1 ohms for insulation. I unplugged each components at a time and no change. I checked the heater, motor, drain pump, float switch, inlet valve, diverter motor, capacitor, suppressor.
I will check the electronic board.
Am I dealing with a very rare case of low insulation problem after a water leak from the sump when there’s nothing on the bottom indicates it?
Will have to work up the top now…
Re: Does anyone use this loop tester info required
As per recent post, I noticed that Shaun67 is using the clamp meter, perhaps you might like to share your experiences and show me how to use it as I never felt the need to use it with the exception of the dishwasher heater. I used a different method such as infra red temp probe to test the water temperature (of course after I have carried out the insulation test). Can the clamp meter work without plugging into the mains? If I understood this right, use the clamp meter together with the insulation tester, lets say clamp the meter onto a heater wire then press the insulation tester and then you should get the reading from the clamp to see if the heater is sound? I may have misunderstood it which was probably why I never used it!
Most built in appliances have plugs that are easy to access to, usually in the next cupboard when you have cleared all the cleaning bottles and carrier bags. There have been several incidents where the plug was located right behind the appliance with no means of isolation other than the fusebox. Some are easily isolated from the kitchen worktop on the wall after figuring out which was the switch for the appliance in question.
I am interested to see how you did the loop testing on those appliances, perhaps you may wish to draw a picture and scan it then PM me? I will have have a look at it and hopefully get what you are coming from. Like yourself Shaun67, I am too in the position of diversifying possibly into refurbishing appliances in addition with the usual repair work and I think the clamp meter could be a valuable tool so I would welcome your input (training). 🙂
Re: Does anyone use this loop tester info required
Shaun67 made a lot of valid points. I was one of Graham Dixon’s students and I am sure there are many on this forum were one of his students too.
Things have moved on so much over the last 4 years and with new testing equipments coming out promising the earth to solve our crises. I did remember asking Graham about the various tester and I think the reply was the multimeter would do 95{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} of your job and the insulation tester is a very small part of the job but also a very important part due to time saving, cost saving as well the safety factor.
But as for loop tester, I did the training and like you said trips the fuse box, I can’t see myself going around people houses and asking them if they would mind if I trip their fuse boxes. Hard wired appliances are very common and it would be handy to have something to test it without putting myself and the customer at risk, let alone tripping the fuse box. I would like to know more about what you found out and how it worked on your job.
More over to the clamp meter, well that’s another thing and I recalled ever needed one just once that was for seeing if the heater works on the dishwasher but 99{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} of the time I never did needed it. Unless someone on the forum will persuade me why should I need a clamp meter?
Re: Bosch SGS model with plastic sump
Turned out that it was the seal from the sump to circulation motor channel toward heater. Gained access by tilting on its back and removed metal base. Easy access to everything. I would have not done it at the customer’s house due to tiny kitchen.
A mere £10 parts. Still throws up low insulation 0.1mohms. Disconnected motor, heater and still get the same readings. Me thinks electronic board. Decided to let sit for few days to dry out and see what happens.
Would welcome other ideas…
Re: Bearings for Hoover HNF 3156
I didn’t anything back from the two bearings suppliers. My van was beginning to fill up with dead machines and couldn’t hold it out for longer. If I had the bearings in time then I would have not been in this position. Sadly the Hoover washer found its way to the scrap yard along with the blasted Zanussi sealed tub washer.
Now today is a good day to bury bad news…a leaking 5 years old Bosch Dishwasher!
Thanks for your advice Steve, I have learnt a great deal from it and am not put off by it. What I will do next time is order a standard 6208 bearings and seal and see what happens. 🙂
Re: Bosch SGS model with plastic sump
Sorry! SGS53C12UK/01
I try not to make a habit of posting without model number! 🙂
Re: Does anyone use this loop tester info required
Yes seen the link before but I’d rather have something more realistic and relevant for service engineers. I think I will look up on youtube…
Re: Does anyone use this loop tester info required
Martin wrote:
I did a downloadable PDF file on how to use a Megger, was gonna follow up and expand on how to use a Loop Tester and am part way to completing it…but sod it…why should I?It’ll end up in the public domain anyway. :rolls:
What a shame! I found your PDF file useful and I used it to refresh my memory and would have hoped that you would expand it on a Loop Tester so that I can use it for future references. Perhaps I should PM and give you my email address for your wonderful PDF file on a loop tester?
I recall using the loop tester years ago and I struggled to comprehend on how it was relevant for hard wired appliances as the result is open for interepretations and there’s no way of deciphering the result on the appliance in question without having previously enrolled at Bletchley Hall.
Re: The perks of buying new appliances at trade price for ‘e
I took the chance to investigate the fault of the Fagor HPM oven, at the time when it was new, it was at the higher end. Like some thread said premium made oven and the parts are difficult to get hold of.
I have worked on lots of ovens of all makes but I have never came across one with electronics. Funny how this oven stood in my kitchen is the electronic oven over the last 8 years and it proved it was very reliable unlike the ovens I go out to see such as Bosch, Zanussi, Hotpoint which are basic set up using simple method of thermocouple that are often less than 5 years old. One housing estate no more than 5 years has Bosch oven installed at the same time, then roughly the same time I got a call out for their Bosch oven for replacing fan heater element and grill for most of the housing estate. Makes me wonder if they were fitted a faulty batch. It boils down to the build quality and prices are not a factor as most of us knew that, it’s the name they shell out for rather than quality.
More to the point of the title of the perks for buying new appliances which turns out in the end the perks of buying parts at trade price for your loved one which it is much much cheaper than buying a new oven. In my case it is a case of a power card failure a mere £80 part possibly 2 to 3 weeks waiting order which is worthwhile compares with £500 for a like for like new oven CDA.
Most of my client would write it off down to the age but in my case my wife loves the oven so much and is willing to have it rebuilt many times over. I wish all my clients are like that then what makes the job worthwhile and I would be quids in!
Re: Does anyone use this loop tester info required
Sorry to sound like an idiot… I’ve done PAT testing and passed but I simply used the plug device and press on the insulation tester and see the numbers that should be at least 1mohm, plenty show up as infinity and some falls in the 100 to 200 mohm range. As for earth continuity I use a bog standard multimeter costing £5 and check the resistance of no more than 0.1ohms.
This brings to loop impendment(what’s the hell is that?), please do kindly remind me as I can’t remember? All I know that if the appliance is hard wired with no easy access to test it then you note it down that it cannot be tested, the least you can do is carry out functional checks and ground checks. Think hand dryers in the men’s toilet… Very hard to PAT test it so it comes down to functional checks.
So how do you loop test a hard wired appliance other than sticking one lead to a metal case and the other in a nearby wall socket for earth continuity? Would that be ground test? Water pipes and gas pipes are earthed through sockets (found that out by chance), even the ruddy kitchen sink! Sorry to veer off course but read on…
A brief lecture would be appreciated….
Re: Holy Moly Thats Expensive!!
johnmac11 wrote:I thought I should rekindle this one for the amusement of all, I called Brittania today for the price of a ceramic top for one of their cookers and was told £1253.98 PLUS £9.95 for postage, you would think for that price they would at least through in free delivery :rotfl:
JohnAre you serious? Did the customer cough up or write off?
Re: Bearings for Hoover HNF 3156
Thanks Steve,
I have contacted two bearings specialists, Simply Bearings and Bearings King. They both said that the bearing I quoted was not exactly off the shelf due to the change of coding on the bearings. The last three numbers I quoted as 223, I was told that these numbers have a specific reasons and there’s no direct replacement so they (SKF) are looking for equivalent and would get back to me within an hour which was yesterday lunch time. They do have the bearings off the shelf that matches the first half of the coding but the other half threw them off course. I have not heard from them yet.
I maybe safe to assume that they have not found it and possibly made my Hoover washer render obsolete. I doubt that they would make one specially for me as there’s no demand for it? I found it odd that if this is a later version then there should be parts available? Like you said you would not be surprised to see the changes. As a novice – is this common among Hoover products including Candy? I think I will hold on to it till Monday and if nothing developed then consider loss.
Pity as I have a potential buyer of the Hoover washer once I have fixed it with new bearings, what a shame! That’s life I suppose… Scrap yard gains
Re: Bearings for Hoover HNF 3156
Certainly been an interesting afternoon locating new bearings, found two suppliers of ball bearings.
They say the SKF manufacturer have changed the coding of the ball races. So i am waiting to hear from them to see if they have it otherwise bye bye washing machine…
