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    • Samurai Appliance Repair Man

      Webinar Recordings Index Page   11/07/2017

      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) Refrigerator Sealed System Thermodynamics, Part 3 (Length: 1:11:56) Refrigerator Sealed System Thermodynamics, Part 4 (Length: 37:45) Refrigerator Sealed System Thermodynamics, Part 5 (Length: 16:35) 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.
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      [Webinar] Appliantology Workshop   11/09/2017

      Information is the name of the game in the appliance repair trade today. Appliantology is a powerful information tool for the professional appliance repair technician. But just like with any of the more capable tools in your tool bag, many of the more powerful features are hidden from you unless you "read the manual." Ugh! Who wants to do that? Well, this is one time when you don't have to! In this webinar, Team Samurai will personally walk you through the site and show you many of the useful and powerful features that even long-time users probably never knew existed.   
hyprdrvr

Coleman DGAT070BDD Flashes once

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Bullstok

i have had many where the burner was a little dirty (or turned slightly grey) and i increased the reading several microamps by cleaning the area of the burner where the flame comes out from (3m scotchbrite pad). not saying that is absolutely the problem. but something to consider if the grounding of the burner has already been checked. also once in awhile the flame sensor rod gets glazed and touching it a little with small very fine file will help. (don't leave gouges, just very lightly)

p.s. a lot of boards only need 1 microamp

Edited by Bullstok
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hyprdrvr

No luck on the manometer. At this point, everything leads to the new control board being bad. Ordered it online and missed the little note about no returns on circuit boards. I have emailed the manuf. (icm controls)...waiting for a response. Also,the temps have finally dropped to low 40s here in NW Louisiana, so I called the local coleman service tech. The will be here early next week to look at the recall issue. I'll have them figure it out if the manuf. can't/won't help me out.

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jb8103

There is one thing left, stray voltage on the neutral.

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hyprdrvr

How do I check that?

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jb8103

Neutral is grounded at the panel. If there is any voltage between neutral and ground inside the furnace cabinet you have a wiring problem somewhere. I only mention it in case you did not specifically check for it when taking the long shot. It's just that voltage on the neutral, or ground of course, would definitely have an effect on our microamps.

Don't worry about the manifold pressure if your flame characteristics are good. Which they are.

That's all I have, hyprdrvr. Bon chance, and if you do get to the bottom of this, post back, won't you?

P.S. Use that borrowed Fluke meter to check this, you need a true RMS meter.

Edited by jb8103

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hyprdrvr

Will do on the resolution post.

Don't have the fluke on hand. Bought a Klein MM200 to replcae the GB meter that was not reading amps correctly. Should have bought the MM2000 but did not think I would need true RMS or Low Impedance. Anyway, It's reading 0.074 VAC and 0.5 mVDC between house ground and neutral on control board.

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jb8103

Sheesh, that's cleaner than usual.

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Daveb1972

All furnaces that use flame rectification are sensitive to propper polarity. Chech the 110VAC supplu (black) to ground, and the same Neutral (white) to ground. If they are reversed this will occur.

flame sense values above 1.5 UA are usually enough to keep the control happy. I'd try to check burner ground as well, right where the flame would complete the circuit t ground from the flame sensor.

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