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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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dgp

Carrier WeatherMaker with Code 31

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dgp

My Carrier WeatherMaker 9200 stopped heating with a code 31.  From reading the forum and manuals it looks like it could be one of several things.

 

  • Blocked drainage
  • Blocked air duct
  • Pressure Switch Failure
  • Inducer Motor

The motor spins when the system attempts to fire up.  I never see a glow in the burner view port.  I have been unable to locate the inlet from the manual which shows where to pour antifreeze went winterizing.  I read that you could pour water through to see if the drain is clogged.

 

When this first happened, it was off for a day, then came back on by itself.  For that reason, I was led to believe it was the drainage.  Perhaps the Pressure Switch is getting flaky.  Is there a way to test the switch?  Or should I simply replace it and work from there?

 

dgp

post-61607-0-91950000-1383496345_thumb.p

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

RegUS_PatOff

http://appliantology.org/files/file/1368-carrier-furnace-operating-installation-manual/

Carrier Furnace Operating / Installation Manual
Weather-Maker
WeatherMaker Infinity
9200

58MCA
58MVP
58MXA

om58-67.pdf

(after upload approval by the Samurai)

 
31 Pressure Switch Not Closed
Check to make sure that all PVC pipes leading into the combustion-air intake and vent/exhaust
are free from any cracks and sags.
Also check the combustion-air intake and vent/exhaust pipes on the outside of your home for blockage.
> bird's nest during the summer ?
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Cactus Bob

pressure switch failure , IS REALLY COMMON  !

 

start there !

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jumptrout

The draft inducer motor running is normal on a call for heat.

Remove the pressure switch tubing from the draft vent.

Suck on the tubing to listen for a click in the pressure switch.

Use your meter set for continuity and test the PS terminals.

If it clicks and they close OK,replace the tubing on the DI vent.\Remove the tubing and blow through to clear any restriction at the DI vent.

Replace the tube on the PS and start yor furnace while checking voltage at the board from the PS.

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dgp

5944718695940402641

 

From the photo, do I use the top tubing on bottom tubing?

 

And this is the pressure switch, correct?

 

Thanks to all three,

dgp

Edited by dgp

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Budget Appliance Repair

That is the pressure switch, the lower hose is the one that supplies vacuum to the pressure switch.

 

Remove the lower hose and try to blow back thru it, most likely you will not be able to blow thru it.

 

I had one that had that exact same draft inducer motor a year or two ago and the bottom of the drafter inducer chamber will completely plugged up with rusty muck.  You may have to remove the draft inducer motor to get it fully cleaned out, also make sure the condensate drain hose at the very bottom, (the larger hose), is clear and not plugged.

 

If the condensate drain isn't draining good it will back up and plug off the vacuum hose.

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dgp

I checked the vents and they appeared to be clear.  I then took off the top tube to the combustion chamber and (ooops) sucked through it.  I got a throat peppering of debris.  The furnace started because the tube was off.  I then reconnected the tubing and the furnace kept running.  Did I need to cycle the power after restarting?  If not, I believe the problem was blockage in the tubing.

 

Thanks all,

dgp

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Bullstok

Edit: never mind. It was posted before about the flues and i missed it

Edited by Bullstok

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