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      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.
SonofaWhatthe

basic help a/c

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SonofaWhatthe

I will start with overly simple dialog since I'm out of my element. The outside thing makes noise (it's not blowing out hot air but it's blowing out neutral air to my thinking). The inside thing makes noise... and yet no cold air is moving through the vents. The registers are cold but no air is flowing. Why does the furnace "thing" make noise and yet no air is moving???

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jumptrout

You probably have a restricted evaporator coli in the inside air handler unit.

The restriction is probably a coil that is frozen over.

If you van verify the indoor fan motor is in fact running,set the thermostat in the FAN ON position.

Set the HEAT/Cool setting to OFF.

Run the system like this until air begins coming from the vents.

You will need a technician to check the system refrigerant charge.

Low refrigerant will cause the air handler coil to freeze over.

Dirty coils will freeze over.

Bad fan motor not moving air will cause coils to freeze over.

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RegUS_PatOff

The outside thing has a Compressor and a Fan ..

You may be hearing the Fan, but the Compressor may not be running

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SonofaWhatthe

Thank you both. While I was away today a "tech" came by and confirmed that we had freezing going on (somewhere) and that my mother in law needed to let the thawing, etc.. happen. We also had a dirty filter that needed replacing. He said that M-I-L had left it turned down too low which led to the problem.

 

So after those fixes we are back in business. I wonder if for how long given your suspicion that refridgerant may be low. We have set it down to 71deg and will watch what happens. The fan was blowing most of the day without the cooling on so I'm sure we are thawed out for now. And we replaced the filter.

 

This tech told M-I-L to keep the vents closed in the basement and then open them in the winter. I was surprised as I've read in nearly every other place to keep the system open even though you hate pumping that cold air into the already cool basement. Are there certain systems where closing the basement vents is actually best practice and this tech had savvy or was he, as I suspect, using common sense and not professional sense. The tech was a friend of my sister in law and works on general maintenance and HVAC in the restaurant industry but isn't a true HVAC serviceperson.

 

Thoughts? 

 

Thanks again for the help!

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jumptrout

Closed vents contributes to restricted air flow.

Newer smart systems with zone dampers and variable speed motors adjust for this restriction.

Older single speed systems do not.

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