Refrigerator not working again

I had a similar experience when I cut a corner too hard and snapped the left front hub out of the brake drum on my 65 Dart and the wheel outran me. o_O

TDD

Reply to
The Daring Dufas
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Muffler bearings and O pipes for your exhaust system can be purchased from this supplier:

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I'm especially fond of their spark plugs:

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TDD

Reply to
The Daring Dufas

There are vocations that require updating your knowledge base often. For electronics the statement often quoted was that half of your knowledge was obsolete in six years.

But HVAC...................... 6 months to a year. You have to be kidding.

Dan

Reply to
dcaster

There are vocations that require updating your knowledge base often. For electronics the statement often quoted was that half of your knowledge was obsolete in six years.

But HVAC...................... 6 months to a year. You have to be kidding.

-------------------------------------

Not kidding at all.... I do approximately 5 semester hours a year in continuing education just to keep up with the new technologies. The newest super high efficiency systems are serial controlled, with variable frequency inverter drives and can vary their output capacity from 40 - 115%. Even the compressors are driven by electronically commutated, variable speed motors. This technology has only been on the streets for a year or so in residential split systems. If you don't have the proper training, you can cause some very expen$ive problems by something as simple as getting 2 control wires crossed. BTW... all these classes, and training isn't free, and the customer pays for *EVERYTHING*.

Reply to
Steve

I am not a rocket surgen, but my company has been working for excellence for many years. I am *not* "billy-joe-jim-bob". Yes there are a lot of hacks out there, but there are some true professionals out there too. I keep trying to help change the rep that HVAC industry has, and raise the bar in my area. FWIW, my company has all but stopped advertising in the yellow pages, it doesn't need to. 90% of our new customers are all from word of mouth referals.

Reply to
Steve

"Michael A. Terrell" fired this volley in news:nK6dncCJD6qsTQfRnZ2dnUVZ snipped-for-privacy@earthlink.com:

Right next to the relative bearing grease.

LLoyd

Reply to
Lloyd E. Sponenburgh

" snipped-for-privacy@krl.org" fired this volley in news:1f9d55b9- snipped-for-privacy@m1g2000vbh.googlegroups.com:

I have an old US Army refrigeration technology textbook my dad studied from while he was in Diesel school.

Except for azeotropes, there's not one bit of that 1940's technology that has changed one bit. You can still troubleshoot modern units with the superheat tables in it.

Which, by the way, was the only way we charged small systems back in the late 60s, early 70s in Vietnam. Our "kit" consisted of a charging hose (no gauges), two precision thermometers, a wad of heat-conductive putty, and a set of cards with tables for the various units we'd encounter on Swift Boats.

LLoyd

Reply to
Lloyd E. Sponenburgh

"Steve" fired this volley in news:i7fh2j$41u$ snipped-for-privacy@news.eternal-september.org:

Yeahbut... that's electronics, not refrigeration technology. Any new industrial machine you can name has the same new features.

F'instance, the new indoor fan motors pretty much come as 3-phase VFD units, with the VFD built into the motor case. It's a fine technology, but it ups the life-cost to the consumer, because many of the motors do NOT have replacement VFD boards available (especially the low-end GE motors) -- where if a start/run cap failed on an older technology motor, it would cost (the tech) pennies to fix.

But that's (again) all electronics. Show me any _substantial_ changes in refrigeration technology.

LLoyd

Reply to
Lloyd E. Sponenburgh

??? Wiring things incorrectly has always been a problem since there were wires.

That doesn't require any new knowledge.

And PLL is not new technology.

Reply to
Ron

It is new for residential heating and cooling systems, and it does require the knowledge to be able to troubleshoot and repair.

Reply to
Steve

VFD has been around for years in industrial apps, but it is just now showing up in residential HVAC apps.

Its not the refrigeration technologies, other than much higher efficiencies, but rather the change in refrigerants with the changes in pressures and oils in residential HVAC stuff. This change is not new, its been in the works since 1989. Granted, there is a large portion of the "techs" out there who only have a ticket book, jug of gas and set of gages don't know or understand how a refrigeration system works or why it works that way. My company gets called frequently to straighten out their messes because the home owner tried to get it done cheap, instead of calling a licensed, insured, professionally trained, master HVAC tech.

Reply to
Steve

A Phase Locked Loop is new how, to residential H/C ?

Reply to
A. Baum

No, I was in that field in the late '90s and early '00s, until my health failed. Did you use any equipment from Microdyne? They were still supplying parts & upgrades for the 1100 series they built during that era. The 1200 series was still in production, along with the

700/1620 series, and the 1400 series. I worked on the launch of their RCB2000/DR2000 series to move it from prototype to production ready.
Reply to
Michael A. Terrell

After I left the US Army, I started an Industrial Electronics repair business. I never had a sign on the business, or even a listed telephone number. I also did all the electronic repair for three school systems. The only time they asked for a price up front was when they needed new equipment. The rest of the time, the principals called me, and at the end of the month I billed the school systems. When I started, some customers had piles of 'unreparible' equipment that took six months to two years to get back from their previous contractor. I fixed all of it.

Someone really needs to clean up that industry, and I wish you luck. A lot of companies around here were hiring anyone with a valid driver's license. They don't care about their reputation, or their customers. Some operate under five or more business names, so when they screw a customer, they end up calling the same people.

Reply to
Michael A. Terrell

I miss firing the M-72, and the sound of exploding parts inside big TV transmitters while you were on the air. The first was at a US Army base where I was a broadcast engineer. :)

Reply to
Michael A. Terrell

Yes, on cars equiped with blinker fluid.

Reply to
AZ Nomad

The Daring Dufas wrote:

Ever had the hood pop up and pull one hinge out of the body? It happened to me on I-75 near cincinnati, Ohio in the '70s. It was a 66 Opal Cadet. I was doing 55 MPH when the hood latch failed. A split second later I was looking at the bottom of the hood, that was caught on the wiper post. It had hit one of the carburetors and bent the top, which wouldn't let me slow down, and had ripped the reservoir off the master cylinder, so I had no brakes. I had to power shift to get work my way down to first gear before I shut off the engine. I was steering by looking down at the flashing white line, which made me quite dizzy. I finally got it slowed enough to pull off to the right side of the road. Luckily, I didn't hit anything before I stopped. I got out and ripped the other hinge out, and shoved it into the trunk. I pried the top of the carburetor open, so I could drive it home. The car was a total loss, because the of the hood hitting the right door post before it hit the windshield. The welds cracked, all the way down the door post, and across the floor to my feet. The only thing holding the body together was the roof and the left door post. I called my boss as soon as II got home and was told that I should have tied the hood down and drove to work, and that what happened was no excuse for missing work. Its no wonder that people called the place 'Chickenshit Electronics'. I was working in QA on the PRC77 manpack radio at the time.

Reply to
Michael A. Terrell

Beware of relatives bearing grease! ;-)

Reply to
Michael A. Terrell

Well, here's a little update.

After 36 hours of sitting without power, the fridge would not start, the compressor motor buzzes and shuts off in 20 seconds or so.

So, presumptively, the compressor is seized. I want to know how much would it cost to replace it, by a fridge repair professional of course.

Thanks

i
Reply to
Ignoramus30441

Hello Steve, It is fortunate for the HVAC industry that the general public does not read the alt.hvac newsgroup. The regulars there seem to know more about their reproductive organs and lower digestive tract than anything about HVAC. I remember a reply from a homeowner asking a question and the slew of BS that came back was amazing. One memorable reply came from a regular poster (pjm) that said this was group for "professionals only" and homemoaners (sic) were not welcome here. Well my sampling of "professionals" on that group does not speak well of their competence and people skills. They do not seem to realize that basic refrigeration and heating is quite simple. The complexity comes from the newer electronic controls and they know nothing about that other than swap things until it works. A case in point was a neighbor that called a professional because the blower motor in the furnace had stopped working. The "pro" said the motor controller was bad, the board was no longer available, so both the motor and controller needed replacing for $800. The neighbor is a bit of a handyman so I asked him to bring the control board to my house and I would look it over. One look and it was obvious that there was a bad solder joint on the line input common mode choke coil and a bit of solder restored it completely. I will bet not one in a hundred of these "pros" even know what a common mode choke is.

David

David

Reply to
David

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