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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.
    • Son of Samurai

      [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.   
jkirksey1889

Bosch Dishwasher SHE46C06UC/36

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jkirksey1889

Manual please.

Thing just keeps going. Time starts at 160 and when it gets to 1 minute left it just keeps running. Customer doesn't know if it's rinsing or cleaning the whole time and I didn't have 160 minutes to watch it. Thanks.

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

jkirksey1889

Thanks

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jumptrout

There is something bad in the heater circuit or a bad control board.

The simpler way to check it is remove the front panel to expose the wiring. Start the dw. About 5 minutes into the cycle use a insulated jumper wire from the incoming power at the control board to the adjacent large RED wire. Your clamp on amp meter should be around the large red wire while doing this. No amps will be bad heater circuit component(s). 10.5 amps will be a bad heat relay on the control board.

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vincef

Take the board out of the plastic housing that it comes in, You will probably find a burnt solder joint on the back side of the board.

If you are feeling like an electronic engineer you can fix the bad solder joint with a small piece of wire but that will go bad sooner than later.

That solder joint is what feeds the heater, heater never comes on so dw cant finish with a dry cycle or the water never gets hot enuf to wash.

The board is most likely the problem... and the post above this works great too, thats the real way to test it. My way is my dad's old school way.

All my best

Vince

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Samurai Appliance Repair Man

It can be a bad solder joint but not always and this can trick people. If you're not getting the current draw that that Brother jumptrout described, then there will be one of two problems: open in the heater circuit (usually the NTC); or the control is not putting out 120vac to the heater.

It's easiest to check the control.

The control board puts out 120vac to the heater circuit on the red wire. If you're not getting the current draw through the heater, then check to see if the control is putting out 120vac on the red wire. If it is not, then the problem will either be 1) a burnt solder joint on the heater relay or 2) some other non-visible problem with the control board. I have seen the control boards fail in this manner WITHOUT the relay being visibly burnt, so you have to check for voltage the red wire to know what's going on.

The difference between the two type of control board failures is this: burnt solder joints are field repairable but the other types of non-visible failures are not.

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telefunkenu47

if you start the unit in light wash. the detergent cup should pop within the first few minutes of wash. Once that happens, the heater relay should close at or within 4 minutes. When I arrive on the call I start the unit in short wash and remove the toe panel and place the amp clamp around the black wire coming into the uinit. This also gives me a chance to check the wire nut connectors or terminal block whichever applies. By the time I get all this done and stand there shootin the breeze w the customer, the detergent door opens, wait 5 min and if the amperage jumps to 11 or so, I know the heater ckt is fine. If not, order the board and move on to the next call. Hope this helps.

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jkirksey1889

Thanks guys.

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jkirksey1889

Just an update. The control board was not putting out 120 to the heater and was visibly burnt. Thanks for the help.

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jumptrout

Glad you got it repaired.

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MrMark

Just to comment on this issue, this is a very common problem with a wide range of Bosch dishwashers. The problem is the relay is undersized for the application. Many times people will tear the control apart, only to find the burned solder joint. This is secondary to the real problem, which is the contacts begin to fail, causing the reed of the relay to heat up so much that it melts the solder. At some point, enough solder is gone that on the next cycle - boom - and the heater no longer works.

I upgrade these boards with a relay suited for the current, and I beef up the related circuit board lands for the heater. To the best of my knowledge, Bosch has not changed their design, so buying a new board will provide the same results. Resoldering the bad place will eventually yield in a failed heater.

PM contact me if you want more info.

Edited by MrMark
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