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It’s an odd thing but I have very rarely found a faulty thermistor. Had a couple about ten years ago, one on a Philco and one on a Hotpoint 99 series W/d. In the Hotpoint case I think the plastic filler had come loose in the metal can.
Is it anything to do with the fact of my living in a low water hardness area? Do these things suffer from scale build up?
Mike.Re: Thermistors.
Mike I dont find faulty thermistors either. Infact i carnt remember the last one Ive changed.Every time I think of a fault to one its been the wiring.
Re: Thermistors.
ntc on a beko dishwasher 6 months ago… defo not wiring as it had terminals directly going into the part.
Re: Thermistors.
Candy/Hoover w/machine thermistors very often go open circuit. Zanussi dryers NTC’s fitted in the bottom hoses corrode with detergent and those ruddy BSH (Smeg made) washer dryer ones are a constant source of failure.
Another word of caution, those pattern Hotpoint WMA heaters that come complete with NTC, before fitting them I should get your multimeter* out and check the resistance if I were you. Better still take them out and throw them away and use the old one instead. 😉
* Talking of multimeters, like we have been doing lately, that’s the only time I use my multimeter, come to think of it, checking NTC’s! 😀Re: Thermistors.
Martin wrote:
* Talking of multimeters, like we have been doing lately, that’s the only time I use my multimeter, come to think of it, checking NTC’s! 😀😕
So what do you use to check heater is OK?
(Maybe you need to produce a second PDF on fault finding!)
Mike.Re: Thermistors.
Martin wrote:
* So what do you use to check heater is OK?
(Maybe you need to produce a second PDF on fault finding!)
Mike.I’m still waiting for the first one………………..it’s been ages 😆
Re: Thermistors.
leavemetogetonwithit wrote:So what do you use to check heater is OK?
Patience Mike as I will hopefully explain, in words and pictures, how to use a ‘combined’ continuity/insulation tester with emphasis on heater testing spookily enough. In fact that bit I’ve sorted already. That was the easy bit!
My problem now is to explain in simple terms (again words & pics) on the importance and use of an earth loop/PSC tester as applies to domestic appliance servicing. As you probably know that piece of gear generally needs in depth knowledge (17th Edition stuff) in order to use it. So that section of my pdf needs a bit of thought. 😕
As you may already know Loop Testers suitable for our business are very costly bits of kit as they best include electronics that prevent RCD’s from tripping and all the problems that that could entail!
Perhaps I’d best explain ‘How to use a Martindale’ instead methinks! 💡
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