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Hi Aimin,
You do have to program the cavity size as instructed in the tech sheet.
Have you used the self clean prior to the problem with the control panel thermal fuse?
This fuse designed to protect the control board from overheating and I don't think any resistors in the control board can affect it.
Make sure the control panel thermal fuse is routed away from the oven's exhaust vent.
Gene.
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Rank: Member
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Thanks Gene! I did try the reprogram and the resistors are still pretty hot---though I didn't know if it's normal or not. I never use the self clean feature and it just went dark one night. I ordered the thermal fuse and then read on this forum to order the control panel. Once I put the new control panel on, it worked but went bad next morning. The thermal fuse was kind of fixed in a way so I am not sure if I could move it. Thanks again for your help!
Aimin
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Rank: Advanced Member
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Aimin,
I'm afraid I did not get clear why did you replace the control panel. Did you do it just in case or it was something wrong?
Did the cavity size programming go through smooth?
What is the complete model number of the oven?
Gene.
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Dear Gene,
Our double oven (Model #GBD277PDB09) went down but the light still on. After reading this forum, I bought the thermal fuse AP3110028, which is different from the original as it has two connectors for the wire. However, from the discussion here it is the one for my model. So I replaced the fuse by putting the wire into one connector on the opposite of the incoming wire in the fuse (?). It didn't work and after more reading, I ordered the control panel AP3131956 from here. Once I put the new control panel in, it worked although we kind of noticing the resistors (R90-92) were pretty hot. With excitement we went to sleep. The next morning, however, the oven went dark again. We reasoned that since it was good for a time, it must be the control board that went bad. From what I read from here, I think I did check the transformer and the the voltage and the fuse seems to have blown. Again for the transformer part I am not too sure. So after some time I reordered the thermal fuse and control board AP5272198. We put it in and yes it did work! And I did do the cavity reprogram yesterday without problem. Still the few resistors were pretty hot, so I am afraid that something is bad. So I thought I better check with the expert before it broke on me again. Thanks in advance for your help and I appreciate very much for your time.
Aimin
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Hi Gene,
Just check the transformer. It seems to have different reading on different settings( x10 vs. x100). On the x100 the upper red read 140 and the lower blue read 50, while on x10 the upper is 6 and the lower is 4-5. Without plug the transformer, the voltage between p16-5 and p16-7 is 120V. Does this mean that the transformer is the culprit? Thanks in advance!
Aimin
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Set the meter scale on x1 and redo the transformer test. Measure the resistance between the blue wires and between the red wires separately. Post the results. Keep the power to the oven off so far. If the original control panel thermal fuse looks like the fuse on the following picture, you have to order and instal that one because they are designed for a different temperatures. - The thermal fuse Part number: AP3777386
Gene.
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Rank: Member
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Thanks, Gene! Unfortunately the one I have didn't have x1, but I think from the other readings it likely went bad. I have ordered the transformer. I will try to see if I could find a better meter to check. As for the thermal fuse, yes the original one is indeed like the one you posted. So I actually should buy AP3777386 instead of the one that are for my model ( I actually bought two of these already). Thank you so much for your help!
Aimin
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Rank: Advanced Member
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You are welcome Aimin. Keep us posted.
Gene.
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Hi Gene,
Received the new fuse and new transformer. Redid the measurement and I think both new and old transformers seems to be good Upper is about 80 and lower is <1. Connected to power without the control panel, still the resistors are hot especially the big R1BB (the R90-92 were hot but not like before). Should these be hot? I am doubtful that they should be with only the power on. Your suggestion will be highly appreciated.
Aimin
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Rank: Advanced Member
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Joined: 7/19/2007(UTC)
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Aimin,
It is normal for any resistor to get hot due to energy transfer.
Gene.
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