Learn how to be your own tech line...

Click here to check out our structured, online appliance repair training courses for rookies and experienced techs.

FAQs | Repair Videos | Academy | Newsletter | Podcast | Contact

Stay connected with us...

Samurai on Facebook - become a fan today! Sign up for our free newsletter and keep up with all things Appliantology. Subscribe to our YouTube channel for lots of appliance repair tips and help! Follow the Samurai on Twitter and get timely morsels of Appliantological Wisdom! Subscribe to our MST Radio podcast to learn secrets of the trade.
  • Announcements

    • Samurai Appliance Repair Man

      Webinar Recordings Index Page   10/03/2017

      On-demand appliance repair training videos for Professional Appliantologist members Over 30 hours (and growing!) of original, high quality appliance training webinars developed and given by yours truly are at your fingertips, on topics you won't find anywhere else. Fill in those knowledge gaps, strengthen those areas of uncertainty, and boost your skills. Watch on mobile or desktop at your convenience whenever, wherever.  Ultra Short Primer on Basic Electricity, Circuits, Ohm's Law, and Schematic Reading (Length: 1:04:48) Basic Refrigerator Troubleshooting (Length: 1:10:45) Schematic Reading Workshop, 10/2015 (Length 1:19:08) Troubleshooting Strategies for Computer-Controlled Appliances (Length: 48:34) Semiconductors and PN Junctions (Length: 1:04:37) Appliance Temperature Sensing Devices & Technology (Length: 1:27:33) Voltage Measurements, Meters, Ghost Voltages, and Triac-controlled Neutrals (Length: 1:29:32) Troubleshooting with Tech Sheets, Part 1, 4/2016 (Length: 1:09:26) Troubleshooting with Tech Sheets, Part 2, 4/2016 (Length: 1:21:11) Tech Sheet Review, 4/9/2016: Bosch Speed Cooker, Amana Refrigerator, GE Glass Cooktop Range (Length: 1:22:58) Pulse Width Modulated (PWM) Switches used in Samsung Switched Mode Power Supplies (SMPS) (Length: 27:07) PWM Computer Cooling Fan in a Whirlpool Refrigerator (Length: 14:53) Understanding AC Split-phase Household Power Supplies (Length: 52:41) Troubleshooting a Samsung Electric Dryer without Disassembly using Live Tests and the Schematic (Length: 22:47) Troubleshooting a Bosch Dishwasher No-Heat Problem using the Schematic and Live Tests (Length: 15:38) Linear Motors and Linear Compressors (Length: 55:54) Bi-directional PSC Drive Motor Systems in Whirlpool VM Washers (Length: 56:52) Appliance Service Call Structure and Troubleshooting Strategies (Length: 1:00:16) The Ten Step Troubleshooting Tango and Workshop Exercises (Length: 1:35:39) Troubleshooting Ten-Step Tango Advanced Workshop (Length: 1:32:06) Ten-Step Tango Troubleshooting Workshop: Refrigerators (Length: 1:35:57) Whirlpool Duet Washer Schematic Analysis & Whirlpool Dryer Moisture Sensor System (Length: 1:03:04) Neutral Vs. Ground, Inverter Microwave, Digital Communications, Loading Down in DC loads, and more! (Length: 1:14:45) Gas Oven Service Call After a Parts Changing Monkey (Length: 36:04) AFCI and GFCI Circuit Protection Technology (Length: 41:26) Troubleshooting Samsung Refrigerators and more (Length: 1:29:58) 3-way Valves and Dual Evaporator Refrigerators (Length: 1:15:45) Split-Phase Compressors and PTC Start Devices (Length: 1:11:57) Gas Dryer Ignition Systems (Length: 53:50) Refrigerator Sealed System Thermodynamics, Part 1 (Length: 43:07) Refrigerator Sealed System Thermodynamics, Part 2 (Length 1:09:09) To access these webinars and all the other info-goodies here at Appliantology, become a Professional Appliantologist today. If you need cost-effective, time-flexible, state-of-the-art appliance technical training, check out the Master Samurai Tech Academy.
    • Samurai Appliance Repair Man

      Master Samurai Tech Radio Episode 21 – Battle of the Titans: Samsung, Whirlpool, Kenmore, and Amazon   10/11/2017

      In this episode: Industry News: Employment numbers for the appliance repair industry Whirlpool lawsuit against Samsung because Samsung is kicking Whirlpool's corporate *ss on front load washers Samsung opening a new, state-of-the-art $380 million manufacturing facility in South Carolina Kenmore appliances on Amazon Appliantology monthly workshops: https://appliantology.org/calendar/event/822-webinar-appliantology-workshop-using-appliantology-as-your-indispensable-appliance-repair-information-tool/ Refrigerator sealed system repairs: what you really need to know https://appliantology.org/blogs/entry/999-sealed-system-repairs-the-mystique-the-reality/ Top Kendo Master at Appliantology each month wins $100! https://appliantology.org/blogs/entry/1000-the-top-kendo-master-each-month-wins-100/ Oven and Range repair training course- just in time for cooking season https://mastersamuraitech.com/appliance-repair-courses/oven-range-repair/ You can listen to just the audio portion by subscribing to the podcast here.
moish

current leakage in Power Tools

Recommended Posts

moish

Does somebody have a simple YOUTUBE video on how to check for current leakage in power tools with both 2 and 3 prong plugs using a digital multimeter? If not, can someone post one and/or put the procedure in simple steps on a forum?

Thank you for reading my request. I think this is a very important skill for the DIYer.

Mench

Share this post


Link to post
Share on other sites

Need appliance parts? Call 877-803-7957 now!

RegUS_PatOff

With power OFF, you could use your OHMeter set to the 20 MegOHM scale (or higher)

and measure the resistance from the power tool case to each of the Line Cord pins.

OR with power applied, and your meter set meter to the lowest milli-amp scale

and read the current from the case to an earth ground, such as the ground terminal of a Wall Outlet.

Some Ground Fault Current Interrupters (GFCI) safety devices trip at about 3ma to 5ma within a few milli-seconds.

Hopefully your power tool should be nowhere near that.

Less than 1/2 milliamp no sensation

1/2 to 2 milliamps Threshold of perception

2 to 10 milliamps muscular contraction

5 to 25 milliamps painful shock (may not be able to let go)

Over 25 milliamps Could be violent muscular contraction

50 to 100 milliamps Ventricular fibrillation

over 100 paralysis of breathing.

That's the reason you should always use GFCI protection with any power tool.

Share this post


Link to post
Share on other sites
moish

My questions are now :

1) What should the ohm readings be?

2) Shouldn't the switch be in the "ON" position?

3) How do you test a plug with 3 prongs and what should the reading be in ohms for the ground prong to the metal of the case with the switch in BOTH the "On and OFF" positions'

Thank You,

Mench

Share this post


Link to post
Share on other sites
RegUS_PatOff

what are we talking about ?

Share this post


Link to post
Share on other sites
Budget Appliance Repair

A grasshopper who doesn't know to continue the discussion in the same topic......

RegUS, you should probably merge this question with the previous discussion:

Share this post


Link to post
Share on other sites
Samurai Appliance Repair Man

Topics merged.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now