I had a power surge at my home, my oven stopped working (nothing displaying on the front panel), and the control board AP4303468 now makes a continuous hum (unless I turn off main power to the oven). It seems likely I need to replace the control board, but it seems to have been discontinued. Is there any alternate part I can use?
Answer Hello Daniel,
You have a high limit thermal fuse 71001844 on the unit that may have blown. You will want to check this for continuity. If there is no continuity then you would want to replace it. If there is continuity then you would need a new control board. This is located behind where latch is so you may have to pull unit to access it.
The lower element in the top oven started burning. I shut off the temperature using the control pad on the oven, but the element continued to arc. I had to shut off the power at the fuse box. I'll order a new element but I was wondering if there is a relay that went out too, which caused the power to the burner to stay on. This oven has a top and a bottom oven. Only the top oven is controlled by the control pad. I'm trying to figure out what part may have gone out to cause the power to stay on the element. Might it be a relay board or Cycle Switch? Any help would be great. Thanks!
Answer Hello Doug,
This will be a relief to you, I'm sure. There was no malfunction of the controls. Replacing parts at this point will be a waste of time and money. The material that the elements are made of is called Calrod. It is named after the company that originally began production of the elements. It has a strange characteristic that when it burns into, it will sometimes continue to burn until it just, for whatever reason, decides to stop burning. This occurs even after the power is disconnected to the unit so it's kind of funny that it stopped when you turned the power off. I have seen them burn all the way to the mounting bracket on one side and not offer to continue to burn on the other side. The only real down side to this characteristic, besides freaking the customer out, is that it will sometimes leave balls of melted metal stuck to the inside of the bake compartment, not to mention the white deposits that will sometimes not wash off.
Just in case you doubt me, I have done this for a living for over 21 years. I have not only heard the complaints, but I have witnessed the phenomenon myself. I have talked to several manufacturers who also confirmed the occurrence. It is most problematic for a technician when the customer is convinced there is still an issue with the appliance when there is absolutely nothing that can be done short of element replacement.
I hope I cleared it up for you. It doesn't happen often, but when it does, it's like a forth of July celebration. Like a big sparkler. It will probably never happen in this unit again.