Question about GE Ovens
16-year old unit has given good service until recently. Now it works fine sometimes, but not others. Specifically, one cannot trust the temperature. Yesterday it repeatedly shut down with a "PF" signal. The muffins were ruined. Interior light still works so it has power. Model # J KP14WOP1WG S/N MF638835Q. Thank you.
SOURCE: F2 Oven overheats
jaz3133, it's probably the temp sensor that has gone bad. You should be able to get it from the front. It's the probe that comes out from the back wall of the oven. You can have someone ohm it out. Should read approx 1100 ohms at room temp. Part number for the temp sensor is WB20K5040. Make sure power is off befor removing the sensor. Catriver..post back.
Posted on Mar 04, 2007
Hi, this will happen over a period of time and its just heat related. the control panel isn't insulated properly and , there has been a larger than normal transfer of heat to the inside of the control panel where the circuits are housed.
If this is a problem, i recommend replacing the control board. it will fix the dim issue.
Posted on May 22, 2009
BrianGem posted a great solution back in May of '08, I just completed that fix on my own Jenn air, took me about 30 minutes once I got the correct capacitor.
The display board apparently has a weak spot in the design, most likely heat related, (probably low priced components from offshore sources)
Fix: Replace heat damaged capacitor labeled C3 on display board, Hard part will be obtaining the 35Volt 68uF capacitor, I'm lucky enough to have a Brother in the electronics design field who found me a couple of high reliability caps designed for hot applications, He does not recommend changing sizes without design review for fear of overloading another component, however several other posts have indicated that a 35V 100mF cap has worked fine for them.
TURN OFF POWER TO OVEN PRIOR TO STARTING ANY REPAIRS.
My control panel was attached to the oven with 4 screws accessed from above the top oven door, the panel slid up about 1/2 " and lifted off, Unplug the ribbon cables and the panel can be removed to a convenient work surface. The display board itself is mounted with 4 screws and connected with a wide flat ribbon cable, the suspect capacitor is surface mounted to the reverse side of the board, two plastic clips need to be released (gently) and the ribbon cable unplugged. Capacitor is likely discolored or leaking, Using as small a soldering iron as you can find De-solder it and replace with new, match polarity marks and don’t use any more solder than needed.
If you run into trouble drop me an e-mail to firstname.lastname@example.org and I’ll try to help.
Thanks for this site..
Link to Photo sequence of capacitor replacement (Captions still will not link):
Posted on Oct 12, 2009
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Hello - From what you have described it sounds like the electric range could possibly be experiencing a communication issue with the EOC, wiring harness or faulty element. Try resetting the unit by unplugging it or flipping the breaker off. Wait approximately ten minutes and turn on oven. If proves to be ineffective, contact a professional to move forward accurately.
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