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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] Practical Refrigeration Sealed System Thermodynamics - 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. Here are the topics we're going to discuss: 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) See this calendar event for more details                   
cninham

Help with correct capacitor size for home HVAC -- Lenox and Carrier

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cninham

Can someone please help me verify the correct capacity for the motor run capacitor for two HVAC units that I have, please? I believe the AC service technician replaced BOTH units with the WRONG capacitor size.

AC Unit # 1

Lenox 10HPB42-11P

Capacitor – I believe this should be a 40+5 MFD capacitor

Service technician installed a 50+7.5 MFD capacitor

AC Unit # 2

Carrier

Prod: 38CKC048-371

Model: 38CKC048370 / 38CKC48370 / 38CK048370 (???)

Capacitor – I believe this should be a 40+5 MFD capacitor

Service technician installed a 40+3 MFD capacitor

Thank you,

Cameron

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RegUS_PatOff

Fan Motor Capacitor rating is dependent on actual Fan Motor installed.

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cninham

Thank you for the reply -- in both cases the fan motor is the original motor and the AC unit is "standard" with nothing changed.

Any idea where I can get the capacitor information from, please?

Thanks -- Cameron

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jumptrout

The fan motor will have the cap rating printed on it.

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cninham

Thanks -- I got the fan motor capacity rating from the motor as suggested.

How do I get the compressor (HERM) capacitor rating?

Cameron

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RegUS_PatOff

my research finds:

AC Unit # 1

Lennox 10HPB42-11P

80K48 40/5 440v

AC Unit # 2

Carrier

38CKC048370

P291-5054RS 50/5 440v

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cninham

Thank you! Very much appreciated!

On the 2nd unit, the Carrier, Prod: 38CKC048-371, Model: 38CKC048370, I have received conflicting information. Some other forums have stated the capacitor to be:

45+5 MFD, 440 VAC

Would the discrepancy/difference between the two matter? Is it safer to go with the 45+5 or 50+5 MFD...?

Thanks -- Cameron

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jumptrout

The 10% mentioned by Reg is good info.

The real important part is the 370vac/440vac capacitor.

Any system can run fine with a 440vac.

If a system specifies 440vac it will not run correctly on a 370vac.

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cninham

Again, THANK YOU to everyone for your information and help. It is very much appreciated.

Cameron

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m_west5

I know this is an old posting, but may help someone else reading it.  It's a pain to do, but to be absolutely sure of the capacitance for the compressor, you could remove fan from top of condenser unit and look at the sticker on the compressor. Most Copeland scrolls (very common) and other mfg's have the cap rating on this sticker.

 

Hope this helps.

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