EFA Posted November 8, 2005 Share Posted November 8, 2005 Quickie question as I sit in the utility room bewildered by a malfunctioning product of Robert Bosch..... Using a Fluke meter, should I see a resistance less than +999 megohms across the heating elements of a tumble dryer. I have voltage at the elemnet terminals and all the safety and thermal trips are closed. Awaiting expert knowledge....... Link to comment Share on other sites More sharing options...
Stijn LUYCK 1 Posted November 8, 2005 Share Posted November 8, 2005 >less than +999 megohms If that is Mohms then I'm not surprised ... your heating element is probably open circuit. I would expect something like 50ohm or so ... Link to comment Share on other sites More sharing options...
DaveMorris Posted November 8, 2005 Share Posted November 8, 2005 Interpretation : "Open Circuit" = goosed (but you probably already knew that) Link to comment Share on other sites More sharing options...
shn7 Posted November 8, 2005 Share Posted November 8, 2005 Dave, Ithought Open Circuit = Goodwood 😬 Steve. Link to comment Share on other sites More sharing options...
Frying Pan Posted November 8, 2005 Share Posted November 8, 2005 You may get some help here - the Blatchat of White Goods. They've never let me down so far See some pictures of the build here. 8000 miles completed! Link to comment Share on other sites More sharing options...
EFA Posted November 8, 2005 Author Share Posted November 8, 2005 Stijn/Dave - my thoughs entirely - expected around 50 ohms, To test my theory I metered out the element in the kettle. Also 999 MOhms. Trouble is I'm drinking a nice hot coffee as I type this. I'm rather confused! Link to comment Share on other sites More sharing options...
DaveMorris Posted November 8, 2005 Share Posted November 8, 2005 Logic therefore says that your heater element and kettle are o.k. and that you multimeter is goosed 😬 I've just checked two heating elements (one in spare Tumble drier heater 27.2 ohms per element, other in kettle - which needed to be turned on to check). Kettle was similar in resitance to heating element in tumble drier. Dave Link to comment Share on other sites More sharing options...
Bricol Posted November 8, 2005 Share Posted November 8, 2005 Or simply on the wrong scale on the meter . .. ? Bri Link to comment Share on other sites More sharing options...
Grubbster Posted November 8, 2005 Share Posted November 8, 2005 Or the kettle was switched off? Roadsport build photo's here Le Mans 2004 photo's here Link to comment Share on other sites More sharing options...
EFA Posted November 8, 2005 Author Share Posted November 8, 2005 Nope, The meter is an autoranging Fluke 77 - cost about £300 10+ years ago! Appears to give appropriate readings for all other items (light bulbs etc). I've now turned the kettle on, and guess what....... 26.2ohms. Guess that makes me a bit of an 🙆🏻. I've now established that the initial failure of the first heating element in the dryer will likley go unnoticed as all women are pre programmed to use the devices on full power only. Like most things they do, it alos goes unnoticed when they take ages, so shes only been getting 1.5kw for some time instead of the full 3.0kw! Thanks for all the help!, BTW, part is £79 from Bosch, £14 'buy it now' on ebay! Guess where I'm investing?? Edited by - EFA on 8 Nov 2005 23:23:07 Link to comment Share on other sites More sharing options...
Grubbster Posted November 9, 2005 Share Posted November 9, 2005 😬Glad to be of assistance 😬 Roadsport build photo's here Le Mans 2004 photo's here Link to comment Share on other sites More sharing options...
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