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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.
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      [Webinar] Appliantology Workshop   11/09/2017

      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.   
RegUS_PatOff

Lennox CompleteHeat AM30 Air Handler Module

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RegUS_PatOff

does anyone have a parts diagram for the Lennox AM30 ?

Mine developed a leak at the bottom of the copper Space Heat Coil

where it touches the bottom galvanized bracket.

I removed 2 screws from the front of the bracket,

and the front seems to be loose, but the bracket won't slide out.

Any other thoughts or comments ?

pagefromhm30am30seriess.jpg

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

RegUS_PatOff

thanks, I have that one..

either way, looks like I would have to have the Coil removed (solder)

and repaired or replaced ~ $1500 part

I may need to think about a "complete" furnace / water heater replacement

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jumptrout

If you do not do silver brazing yourself,remove the coil and take it to a auto radiator shop for repair. They would also pressure test the coil. If you have to cut the supply tubing you could use flare fittings and couplers to reattach the tubing.

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RegUS_PatOff

I'll have to think about that..

the water coils are about 10 years old ..

I'll be talking to the original installer company to see what their thoughts are..

I'm thinking of keeping the air handler / blower unit Lennox HM30

After cutting the 3/4" copper, I'd have to temporarily cap the supply stubs... (uses house hot water supply)

and may need to think about replacing the (somewhat tankless) domestic potable water heater (boiler)

and the 20 year old central air.

The Scroll Compressor unit may still be good

Fan Motor replaced a few years ago

Condenser coil condition (?)

"A Coil" has a lot of "surface(?) rust

here's the hot water coils in the air handler

dscf4742a.jpg

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Cactus Bob

last run on the bottom bad ? that's like ten miles of rough road , but you know what you have to do , pull it ,fix it and move on

if the pipes turn out to be worn real thin , looks like you can snip out that lower few rungs and cap them so you just don't send any water through them , the system will work fine without them

replace ? , not if it was mine , i am to cheep and poor to let a nice system go for such a small problem

like i said before , 10 miles of rough road and by the time your done it might feel like 50 but there's no easy way around

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RegUS_PatOff

I can't determine, yet where it's leaking ..

At first I thought it was the bottom run, sitting on the galvanized rail,

but the fins sit on the rail..not the copper.. ..

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DrRick

Ok. I figured it out I paid some money and now I can write. Lennox Complete heat system Many say it is a piece of shit, but ours has been working great for 17 years...................until the water/air exchanger started leaking. Repair man says $2500 to fix......................Lennox parts which are scarce but available commands $1200-$1500 for the radiator. I was able to get a brand new commercial unit that I was able to install with modification. Coil is 3 rows (compared to the original 2 row) and the coil and misc parts came to $400. Took me approx 3-4 hours to replace myself, including some silver brazing. If anyone is interested I will post some pics.

I believed when these units first came out that they were a good Idea, certainly very efficient and the continuous supply of hot water is amazing. We have a 6500 sq ft house that actually has two air handlers.

I am going to replace the upstairs heat exchanger before it leaks.

PS. Do not waste time trying to repair, braze the unit. I did,and 4 hours later (not included in the above labor tally), it was still leaking. it is now full of holes by 30 well placed 7.62 rounds!!

Edited by DrRick

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jb8103
We have a 6500 sq ft house...

Beg your pardon? Is that a typo perchance?

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RegUS_PatOff

... ours has been working great for 17 years

....until the water/air exchanger started leaking.

... Repair man says $2500 to fix...

... Lennox parts which are scarce but available commands $1200-$1500 for the radiator.

... I was able to get a brand new commercial unit that I was able to install with modification.

... they were a good Idea, certainly very efficient and the continuous supply of hot water is amazing.

... I am going to replace the upstairs heat exchanger before it leaks.

... pictures ?

.. yes, efficient and direct vent water heating

... ours is 10 yrs old,... I will be looking for maybe a tankless gas water heater to replace the HM30

lennon1.jpg

lennon3.jpg

update:

fixed it a few days ago ...

Lennox wanted about $ 1500 for the water / air heat exchanger ... ..

I bought a generic 22x22 one from a reseller freeheat4u on eBay $ 200 shipped ..

Item # 170926425214 made in USA

with a little (lots) of copper pipe / fittings ... fits perfectly..

I added a pair of Ball Valves on the top left of the replacement ,

and a pair of Union Connectors (top & bottom center)

Heat exchanger can be removed for cleaning / replacement

ebaywaterairheatexchang.jpg

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