# GE Microwave Transformer

S

#### Steve M.

Jan 1, 1970
0
I have a GEJVM1640WB002 microwave that was manufactured in October of
1999. I have had it since November of 2001. Last night while trying
to warm a very late night sack, the microwave produced some very
intense crackling sounds and gave off a very foul odor. After tearing
into the microwave, I found one side of the transformer was burnt
crispy. Obvioiusly the transformer needs to be replaced. Any idea
what the cause may be? After looking on the GE website I found the GE
P#WB27X10254 transformer to be an outrageous $146.35. The transformer itself is a Samsung SHV-1640UC. It has the words Dong Yang Power Systems INC., LLC on it as well and another part number J1012HP. Does any body know where I can but this transformer with out shelling out all that money to pad GE's spare parts departments profits? I know large companies make bank off of spare parts orders. R #### Rich Grise Jan 1, 1970 0 Even if you find a transformer for practically free, in the long run it'll be cheaper (albeit maybe not as much fun) to just buy a new oven. Of course, you'll still have the old one, which you can then take apart, cut off the burned windings from the old transformer and experiment with it - try and see if the primary's intact, and when you're pulling the burned wire out, see if you can get a count of the turns - it'll be instructive. And it's doubtful that anything but an exact replacement would do the job anyway. And look at the bright side - you get those two ultra-cool magnets! Cheers! Rich R #### Robert Baer Jan 1, 1970 0 Rich said: Even if you find a transformer for practically free, in the long run it'll be cheaper (albeit maybe not as much fun) to just buy a new oven. Of course, you'll still have the old one, which you can then take apart, cut off the burned windings from the old transformer and experiment with it - try and see if the primary's intact, and when you're pulling the burned wire out, see if you can get a count of the turns - it'll be instructive. And it's doubtful that anything but an exact replacement would do the job anyway. And look at the bright side - you get those two ultra-cool magnets! Cheers! Rich ....are they *really* attractive? A #### Art Jan 1, 1970 0 For the cost of the replacment HV transformer you could probably be a long ways to purchasing a new replacment oven. Also if you do wnat to actually repair your oven you will want to check out the other items within, inclusive of the HV diode, Capacitor, Magnatron, and controller. Hopefully you do understant the safety issues in working on these items. BTW the Samsung transformers, in other applicatons such as the Sansumg Branded Ovens, have been having a "higher than normal" failure rate. Probably due to poor design or heat transfer. S #### Steve M. Jan 1, 1970 0 For the cost of the replacment HV transformer you could probably be a long ways to purchasing a new replacment oven. Also if you do wnat to actually repair your oven you will want to check out the other items within, inclusive of the HV diode, Capacitor, Magnatron, and controller. Hopefully you do understant the safety issues in working on these items. BTW the Samsung transformers, in other applicatons such as the Sansumg Branded Ovens, have been having a "higher than normal" failure rate. Probably due to poor design or heat transfer. Thanks for your posting. I have found a website that I can get the transformer for$119, but it will have to be back ordered. I'll
probably have to order that on Monday. I have already removed the old
transformer and it is obviously fried. As for the other components,
any ideas on how to test them? I just don't want to spend the money
on a new transformer and have the new one blow up. As for the dangers
of working on the microwave myself, I read on the internet on how to
discharge the capacitor, but the capacitor has ceramic insulators over
the capacitor terminals so I could not short them together. I just
waited for an hour after I unplugged the microwave before I removed
the transformer.

A

#### Art

Jan 1, 1970
0
Resistive check on both the diode and capacitor. Discharge the cap first!!
Check terminals of Magnatron, should check low resistance across terminals
but infinate from terminal to case ground. Check also the thermal cutout
since the transformer did seem to everheat. Be careful! Current withen these
items has been lethal.

R

#### Rich Grise

Jan 1, 1970
0
Steve M. said:
Thanks for your posting. I have found a website that I can get the
transformer for $119, but it will have to be back ordered. I'll probably have to order that on Monday. I have already removed the old transformer and it is obviously fried. As for the other components, any ideas on how to test them? I just don't want to spend the money on a new transformer and have the new one blow up. As for the dangers of working on the microwave myself, I read on the internet on how to discharge the capacitor, but the capacitor has ceramic insulators over the capacitor terminals so I could not short them together. I just waited for an hour after I unplugged the microwave before I removed the transformer. Well, don't start investing in transformers just to use them for your diagnosis of what blows up the transformer. Good Luck! Rich B #### Bill Vajk Jan 1, 1970 0 Steve said: I have a GEJVM1640WB002 microwave that was manufactured in October of 1999. I have had it since November of 2001. Last night while trying to warm a very late night sack, the microwave produced some very intense crackling sounds and gave off a very foul odor. After tearing into the microwave, I found one side of the transformer was burnt crispy. Obvioiusly the transformer needs to be replaced. Any idea what the cause may be? After looking on the GE website I found the GE P#WB27X10254 transformer to be an outrageous$146.35. The transformer
itself is a Samsung SHV-1640UC. It has the words Dong Yang Power
Systems INC., LLC on it as well and another part number J1012HP. Does
any body know where I can but this transformer with out shelling out
all that money to pad GE's spare parts departments profits? I know
large companies make bank off of spare parts orders.

A brand new GE microwave can be had for a lot less money. I bought
a small one for $49 a while back and its big brother for about$89. Both have powered turntables built in.

At one point I repaired an earlier unit with a blown high
voltage diode. The (universal) replacement was about $5. It didn't last very long. Microwave ovens are throw away units. R #### Rich Grise Jan 1, 1970 0 A brand new GE microwave can be had for a lot less money. I bought a small one for$49 a while back and its big brother for about
$89. Both have powered turntables built in. At one point I repaired an earlier unit with a blown high voltage diode. The (universal) replacement was about$5.
It didn't last very long.

Microwave ovens are throw away units.
Heck, if you ask around a little, somebody might _give_ you one!
("Yeah, we're remodeling the family room, and getting a builtin...")

Cheers!
Rich

R

#### Robert Baer

Jan 1, 1970
0
Steve M. said:
Thanks for your posting. I have found a website that I can get the
transformer for $119, but it will have to be back ordered. I'll probably have to order that on Monday. I have already removed the old transformer and it is obviously fried. As for the other components, any ideas on how to test them? I just don't want to spend the money on a new transformer and have the new one blow up. As for the dangers of working on the microwave myself, I read on the internet on how to discharge the capacitor, but the capacitor has ceramic insulators over the capacitor terminals so I could not short them together. I just waited for an hour after I unplugged the microwave before I removed the transformer. The capacitor or the maggie might also be bad. R #### Robert Baer Jan 1, 1970 0 Art said: Resistive check on both the diode and capacitor. Discharge the cap first!! Check terminals of Magnatron, should check low resistance across terminals but infinate from terminal to case ground. Check also the thermal cutout since the transformer did seem to everheat. Be careful! Current withen these items has been lethal. It is the *VOLTAGE* that is lethal!!!!!!!!!!!!!! J #### ~^Johnny^~ Jan 1, 1970 0 Does any body know where I can but this transformer with out shelling out all that money to pad GE's spare parts departments profits? I know large companies make bank off of spare parts orders. Is this one close enough? The plate voltage and wattage is what you need to match This one costs$15 plus $10 shipping, and is 2100 volts, for a 1000 watt oven, and is a Samsung... it's on eBay, and there are others - http://tinyurl.com/2y6ga -- -john wide-open at throttle dot info ~~~~~~~~ I don't know of anybody that has a perfect life - Marie Osmond ~~~~~~~~ J #### ~^Johnny^~ Jan 1, 1970 0 Microwave ovens are throw away units. Typical middle-class American mentality. ;( -- -john wide-open at throttle dot info ~~~~~~~~ The time to repair the roof is when the sun is shining - JFK ~~~~~~~~ J #### Julie Jan 1, 1970 0 ~^Johnny^~ said: Typical middle-class American mentality. ;( No, sleepy, this is a consequence of lifetime limitations imposed during manufacturing and artificially high replacement parts costs. It has absolutely nothing to do w/ America, class, or mentality, but is strictly a consequence of capitalism. S #### Steve M. Jan 1, 1970 0 Is this one close enough? The plate voltage and wattage is what you need to match This one costs$15 plus $10 shipping, and is 2100 volts, for a 1000 watt oven, and is a Samsung... it's on eBay, and there are others - http://tinyurl.com/2y6ga This one was real close, but not exactly. I found one just like the one I needed at this website for$14.95! I knew I could find one out
there for less! Thanks for the tip!!

J

#### ~^Johnny^~

Jan 1, 1970
0
No, sleepy, this is a consequence of lifetime limitations imposed during
manufacturing and artificially high replacement parts costs.

Quite the convrese, sweetie.

Price gouging at the consumer level is imposed in order to discourage or
outright foil the repair industry. It is called "planned obsolescense".
It has absolutely nothing to do w/ America, class, or mentality, but is
strictly a consequence of capitalism.

Quite the convrese.

This capitalism pivots on our 'throw-away' mentality.
Supply and demand go hand in hand, until there's either surplus or shortage.
In the case of labor sent overseas, there is more headroom for
mass-production of a surplus of junk. The market is flooded. No longer does
anyone want "high end" products, because consumer grade is more 'economical'
and 'frugal'. Then, the visious cycle begins again -- throw it away,
because it is 'uneconomical to repair'.

Therefore, capitalism is a direct result, of, among other things, of a
nation's sloth and greed. It's cheaper/easier to just shitcan it...

The trouble with this picture is, the lower income people are sucked into the
cycle (no pun intended). The irony is, they are the ones who are forced to
recycle, out of necessity, as opposed to greed.

--
-john
wide-open at throttle dot info

~~~~~~~~
The time to repair the roof is when the sun is shining
- JFK
~~~~~~~~

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