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      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.
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      Having laid some theoretical groundwork in the last webinar, we're going to focus on practical considerations in this one. That means quick n’ dirty techniques for diagnosing sealed system problem using strategically chosen and skillfully interpreted temperature measurements.  Review homework from the first session on 10-2-2017. Home refrigerator practical design and operating rules-of-thumb useful for troubleshooting Practical application exercises Troubleshooting scenario exercise Techniques for making system temperature measurements for determining superheat and subcooling Sealed system diagnosis homework assignment (to be reviewed in the next webinar in this series) If you attended the first webinar in this series, this is your payday! We’re going to apply that keen, penetrating insight you now possess into money- and time-saving shortcuts you can use to diagnose real-world refrigeration systems on service calls. See this calendar event for more details                   
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      [Webinar] Appliantology Workshop   10/22/2017

      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.   

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How to enter service test diagnostic mode in Bosch WTMC dryers

Samurai Appliance Repair Man


To enter/exit test program for WTMC dryers:

1. Rotate cycle selector knob to Off position.

2. Push and hold Start/Stop and Delicates buttons at the same time, then turn dryer on by rotating cycle selector knob either

direction -- keep holding Start/Stop and Delicates buttons until Start/Stop light flashes rapidly. Dryer is now in the test program.

3. When test program has been entered:

♦ Start/Stop light flashes rapidly.

♦ Select individual parts to test by rotating cycle selector knob.

♦ Once test has been selected, start test by pushing Start/Stop button. Start/Stop light will stay on continually while tests are

running. Push Start/Stop button again to end any test – rotating cycle selector knob stops all tests except Control

Elements test. Tests have finished once Start/Stop light flashes rapidly again.

♦ To exit test program, rotate cycle selector knob to Off position.


Code Fault Solution Notes Effect

E:11 Overheating due to clogged

lint filter/kinked hose.

Clean lint filter (& air duct if

necessary). Straighten kinked hose.

Displays E:01 during normal

use. Measures reduced air flow.

E:12 Severe overheating due to

clogged lint filter/kinked hose.

Clean lint filter (& air duct if

necessary). Straighten kinked hose.

Displays E:01 during normal

use. Measures reduced air flow.

E:13 Maximum drying time


Check heater, control module, NTC's

& Hi-limit's. Usually faulty heater.

Can also be overloaded dryer.

Stops & displays E:03 during

normal use (after maximum

drying time limit of 240 minutes).

E:17 NTC error (NTC R3 @ lint


Check NTC R3 & wire harness.

Replace faulty part.

Typically shorted or opened wire


Dryer stops &

can't be restarted.

E:18 NTC error (NTC R2 @ heater) Check NTC R2 & wire harness.

Replace faulty part.

Typically shorted or opened wire


Dryer stops &

can't be restarted.

E:20 EEPROM error Replace faulty control module.Dryer stops &

can't be restarted.

E:21 Incorrect checksum Replace faulty control module.Dryer stops &

can't be restarted.

E:22 Invalid update Replace faulty control module.Dryer stops &

can't be restarted.

E:23 Model variant doesn't

match table

Replace faulty control module.Dryer stops & can't

E:24 Software version

doesn't match table

Replace faulty control module.Dryer stops & can't

E:25 Damaged data table Replace faulty control module.Dryer stops & can't

E:26 Control error Replace faulty control module.

Once in test mode, you can select the tests to run using this procedure:

Selecting WTMC / WTXD Dryer Tests

Test Position on knob WTMC33/WTXD53 WTMC63/65, WTXD83/85

View fault codes 1st position on right (cw) Extra Dry (Reg./Cot.) Extra Dry (Reg./Cot.)

Safety test2nd position on right (cw) Very Dry (Reg./Cot.) Very Dry (Reg./Cot.)

Display test (LED's/LCD's) 3rd position on right (cw) Regular Dry (Reg./Cot.) Regular Dry (Reg./Cot.)

Control elements test 4th position on right (cw) Damp Dry (Reg./Cot.) Damp Dry (Reg./Cot.)

Consumer test 5th position on right (cw) Air Fluff Very Dry (Mix)

Moisture sensor resistance measurement 6th position on right (cw) 20 min. Time Dry Regular Dry (Mix)

Sales demo program 7th position on right (cw) 40 min. Time Dry Air Fluff

240V:208V changeover 8th position on right (cw) 60 min. Time Dry Medium Time Dry

Automatic end-of-tape program 1st position on left (ccw) Very Dry (Perm. Press) Very Dry (Perm. Press)

Source: Bosch dryer wtmc3300us/01 lint filter light