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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.
    • Samurai Appliance Repair Man

      [Webinar] Samurai's Sealed System Sleuthing Secrets - 10/30/2017 @7PM ET   10/19/2017

      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                   
Budget Appliance Repair

Starting phase of R-134a - repeat of the R-12 phase out

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Budget Appliance Repair

This article is in regards to auto air conditioners but I'm sure the same is going on in the home

appliance refrigeration.

Refrigerant Changes Lead to Higher AC Repair Costs

Owners of 1994 and newer cars, this is the time to fix your air conditioner. Not just because warm summer days are coming (hurray!) and RockAuto has AC compressors, condensers, evaporators, and other AC parts that we are eager to sell. Fix your AC because you will soon officially be joining the owners of 1993 and older cars in having environmentally unfriendly and expensive refrigerant under your hoods.

In 1994, R-12 (branded as Freon) refrigerant was replaced with R-134a in new vehicle AC systems. R-12 had contributed to holes in the earth’s ozone layer. Production of new R-12 was banned in the United States and most other countries. The price of recycled R-12 skyrocketed. R-12 smuggling became as lucrative as drug smuggling. The last time I had an AC system charged, the R-12 cost $60 a pound.

Now R-134a is on the chopping block because it has a “global warming potential” (GWP) of 1400. Carbon dioxide is the baseline with a GWP of 1. This means R-134a is a greenhouse gas that contributes to global warming 1400 times as much as an equal amount of CO2.

Regulations now specify that refrigerants have a GWP of less than 150. New vehicles in Europe are required to have low GWP refrigerant starting this year. In the US, low GWP refrigerant will be phased in from 2013 to 2016 depending on the vehicle manufacturer.

The preferred new refrigerant is something called R-1234yf. It has a GWP of only 4. It requires special lubricating oils and handling equipment. It is also slightly flammable. AC fittings will be changed to help prevent the mixing of R-1234yf with R-134a.

This time around the production of the old refrigerant, R-134a, will not be banned. But R-134a will be federally taxed so its price is forced up from about $10 a pound to about $40 a pound, the expected price of R-1234yf. The tax is intended to further discourage people from attempting to use R-134a in one of the upcoming new cars designed to use R-1234yf.

This means refrigerant for the typical two pound R-134a AC charge will cost $80 instead of $20. That lost $60 might buy an AC O-ring set, an AC receiver drier or help pay for labor or other needed air conditioning parts. If your AC system needs work or frequent recharging, you will likely save some money by fixing it sooner rather than later.

Tom Taylor,

RockAuto.com

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appl.tech.29501

R134 just went up in my area about 3 weeks ago from $190 / 30LB to $260

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Samurai Appliance Repair Man

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