{874} How to Repair Microswitch

{874} How to Repair Microswitch / micro switch / limit switch. when microswitch is not giving continuity with NC / NO normally closed points / normally open points
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{874}, How to Repair Microswitch, how to repair micro switch, repair, how to, micro switch, microswitch, microwave, microwave oven, fix, microswitch not working, micro switch repair, micro switch testing, micro switch wiring, haseeb electronics, how to fix micro switch, limit switch, micro switch connection, micro switch assembly

[@bobsoft]

This is good. These often fail in microwave ovens.

[@HaseebElectronics]

exactly it is most common failing component in microwave door interlock

[@W1RMD]

I love that you repair components rather that replace them.

[@vinodsuhag9921]

REALLY HELPFUL AND WONDERFUL.
THANKYOU.

[@carstenschwartz1854]

Great and simple insight, thanks

[@gauripartapshanker9197]

Informative vedeo. Thank u so much God bless you.

[@HaseebElectronics]

thanks a lot dear brother

[@muhammadishtiaq24]

Excellent thanks for sharing

[@HaseebElectronics]

thanks a lot

[@Ianf1x]

Cleaned up quite a few on micro waves. 😁and car door locks. ❤❤

[@HaseebElectronics]

wow that is wonderful

[@AbdullahAli-hv5ym]

MarshAllah Allah Mubarak jazakallah khair 💕

[@Edmorbus]

Thanks for sharing

[@HaseebElectronics]

it is my pleasure

[@kamranbhaivlog1328]

Nice

[@gopalarao8578]

Hi brother namaskaar. How are you.
Thank you for sharing this video.
Eid Mubarak ❤. Good night 🙏

[@HaseebElectronics]

thanks a lot dear brother
i am fine. Eid Mubarak
God bless you

[@susantaatha6468]

Very nice

[@HaseebElectronics]

best regards 💕

[@maanidan7552]

Some technicians advise not to use emery paper to scrub the switch contacts. Special coating on contact points gets scratched so use cleaner solvent & cloth, they say.. True?

[@HaseebElectronics]

using zero grade emery sheet (220 or 440 grit) or chamois leather is good. actually we need to remove accumulated material (dust, rust, carbon and oxides due to weather effects, sparking etc)
40 grit: Coarse.
80 grit: Medium.
100 grit: Medium.
120 grit: Fine.
220 grit: Fine.
440 grit: Extra Fine

[@AFTABAHMED41]

it very easy to remove both point strip out and very easy to remove carbon.

[@gxmcdg]

do you have any idea on what can cause that? I have some of these switches in a video game controller. I've used this type of controller for like 20 years w/o problems but since some 3 years ago the switches in it started presenting malfunctioning after 1 day of use or so. Its crazy; it starts double-inputing when the switch is about to disarm. I guess it may have something to do with the power grid from this house Im living now but Im not sure, I have no idea on how to test and find out what is causing these switches malfunctioning.

[@HaseebElectronics]

over-aging is a fact, its contacts get sticky due to some dust rust (spraying contact cleaner can solve this problem)
its spring arm's tension becomes weak, and cause bouncing effect while arming or disarming
it can be monitored using oscilloscope to check bouncing effect

[@gxmcdg]

@@HaseebElectronicsi guess its something related to the contact area, the arm's tension seems to be just fine. Whenever we use contact cleaner the switch gets back to normal if the switch is brand new, like 1-2 hours of use, but the problem presents itself again after another hour. I really have no idea what causes these hyperfast aging, its looks like magic.

[@HaseebElectronics]

@gxmcdg to overcome this issue
10n to 100n capacitor can be connected in parallel to switch contacts
It prevents bouncing effect

[@gxmcdg]

@@HaseebElectronics I understood nothing of that haha, but its not the first time I heard a resistor or capacitor installed somewhere could help dealing with this kind of problem. Would you know what terms I can use to search online in order to learn more about that?

[@paulzac5481]

use 240 sandpaper grit or just scrape with a knife.

[@HaseebElectronics]

perfect
knife or thick grains sandpaper makes scratches, which causes sparking and builds carbon deposits quickly

[@tvbox8478]

👍

[@maanidan7552]

Why no usual Salam from you?

[@HaseebElectronics]

some people respond negatively, so i don't want to hurt someone by saying salaam, although it is greeting (best wishes) but some viewers use bad words. so that reason i skip

[@ELHADJIRA]

Aid mebark ❤

[@HaseebElectronics]

Eid Mubarak dear brother

[@electroniquepassion]

Nice

[@HaseebElectronics]

thanks a lot

[@machineman6498]

👍

[@HaseebElectronics]

best regards 💕