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Thread Tools | Display Modes |
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#241 |
New Member
Join Date: Dec 2021
City & State: aurora, CO
My Country: United States
I'm a: Knowledge Seeker
Posts: 5
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![]() Thanks for the feedback. I’ll look at it deeper after work in a few days. I’ll gather some parts.
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#242 | |
New Member
Join Date: Dec 2021
City & State: aurora, CO
My Country: United States
I'm a: Knowledge Seeker
Posts: 5
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![]() Quote:
I received my order from Digikey -- the replacement capacitors. I ordered a few extra caps since I had to pay for shipping anyway ![]() I removed the burnt resistor and 220uf; along with the neighboring 470uf. Soldered in a new 470uf along with a new 68uf in the C3 position (I had to clean up the joint and contact from the burnt side). All soldered in and tested for continuity. I reassembled and it works perfectly!! Brighter that it ever has been and all modes work. YAY!!!!! ![]() ![]() A huge THANK YOU for all of the great information on this site and the awesome detailed responses from you - the experts. I am very grateful. I am so glad I took electronics classes in high school back in the late 80s. It made this task a simple one. I will keep an eye on it and I am hoping it lasts for another 20 years -- but I am sure we will replace it for a bigger and nicer one at some point. Safe holidays! |
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#243 |
Badcaps Veteran
Join Date: Jul 2011
City & State: Some times Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 3,468
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![]() I am glad you got it working again and for the time being it does not end up in the landfill or someplace like that for now
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9 PC LCD Monitor 6 LCD Flat Screen TV 30 Desk Top Switching Power Supply 10 Battery Charger Switching Power Supply for Power Tool 6 18v Lithium Battery Power Boards for Tool Battery Packs 1 XBox 360 Switching Power Supply and M Board 25 Servo Drives 220/460 3 Phase 6 De-soldering Station Switching Power Supply 1 Power Supply 1 Dell Mother Board 15 Computer Power Supply 1 HP Printer Supply & Control Board * lighting finished it * These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10% 1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later ) 2 Hem Saw Computer Stack Board All of these had ![]() All of the mosfet that are taken out by bad caps ![]() |
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#244 |
New Member
Join Date: Dec 2021
City & State: aurora, CO
My Country: United States
I'm a: Knowledge Seeker
Posts: 5
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![]() Here is a quick pic from this morning. Wife loves it. Just in time for holiday cooking!
![]() Thanks again! |
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#245 |
Badcaps Veteran
Join Date: Dec 2010
City & State: Alberta
My Country: Canada
Posts: 2,461
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![]() That's great, I think some turkey gonna be cooking soon
![]() To summarize, fixing Jenn-Air oven display: Replace C3 68uF 35V (refurbished/newer boards upsized it to 220uF and added a resistor 27R 3W, for longer life... but they use cheap parts) Replace C4 470uF 35V It's a Digi-Key or Mouser parts order for under $20 incl. shipping, to fix an expensive wall-oven, keeping it out of landfill. |
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#246 |
Badcaps Veteran
Join Date: Jun 2011
City & State: Brighton, U.K.
Posts: 621
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![]() I see that this specific subject has generated amazing interest over the years. Certainly, replacing electrolytics on the display pcb will bring back the Jenn Air (and others) display brightness.
However...these things are getting old by anyone's standards, so we have to be practical and realize that the VFD (the display tube itself) slowly ages and as it does, it becomes dimmer and dimmer. Nothing can be done about that. The second very common problem on these stoves is that various functions begin to start up and stop by themselves. Broiler fan starts to run all the time is the usual. I have examined the control pcb minutely and found no obvious part failures. A new control pcb fixes the ghost problems. No differences can be found between a bad board and a good board. Therefore I am 99% sure that the EEPROM on the original control boards also ages (from heat) and the software finally becomes corrupted. Since it is easy to burn an 8 pin EEPROM, I would recommend that someone do just that while your control board is still working. Then, the next problem worth mentioning is that the front panel membrane strip slowly absorbs grease, spray cleaners, etc. One or more of the functions stop working. The membrane can't be fixed and is no longer available. FYI there are several different part numbers for this membrane. The parts all look alike, but have subtle differences that can prevent them from mounting on your stove. The final award goes to the burners themselves. The glass-covered heating elements fail after some number of years. The pull-out heating units can't be disassembled without destroying them. It is sometimes possible to find plug in units with coil-style burners. All these parts are quite expensive. Pretty soon, the price of new stove starts looking attractive. Depends upon how creative you want to be. Good Luck, Longbow
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#247 | |
Badcaps Veteran
Join Date: Oct 2007
City & State: Illinois
Posts: 432
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#248 |
New Member
Join Date: Jul 2021
City & State: St. Louis, MO
My Country: USA
I'm a: Knowledge Seeker
Posts: 3
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![]() Hi, the display on my JennAir JJW9827DDS double wall oven appears to be dim, so I was looking for ideas on which parts to replace. I found these images of the board from eBay.
Last edited by JohnJones; 03-29-2022 at 12:21 AM.. |
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#249 |
Badcaps Veteran
Join Date: Jul 2011
City & State: Some times Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 3,468
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![]() The first picture it looks like there are two caps between the two displays and they look like are swollen at the tops of them it hard to tell from the pictures that you provided but that would be the best place to start if your caps look like them
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