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Replacing control panel on Hotpoint range

range kitchen heating element

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15 replies to this topic

#1 Bill in Kansas City

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Posted 27 March 2014 - 04:48 PM

Hotpoint RB787WB1WW electric range

Part ordered: WB27X10311

 

The wiring layout for the new part doesn't match the wiring for the existing part, but everywhere I've researched says this is the part I need, and even the instructions say the wires might not match. Can someone help me out with what wires go where?

 

A picture of the existing part: https://www.dropbox....6o/IMAG0233.jpg

 

A picture of the new part: https://www.dropbox....ock-Control.jpg

 

Thanks!

 

 - Bill

 

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#2 Bill in Kansas City

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Posted 27 March 2014 - 07:08 PM

Better picture of the new part: https://www.dropbox....n2/IMAG0236.jpg



#3 Samurai Appliance Repair Man

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Posted 27 March 2014 - 07:25 PM

Post a nice, big picture of your range schematic diagram.



#4 LLAMBERT

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Posted 27 March 2014 - 08:05 PM

Yeah a wiring diagram is needed. The yellow and blue are most likely the relays to the bake and broil. trial by error gets expensive sometimes on a board like this.


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#5 Bill in Kansas City

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Posted 27 March 2014 - 10:35 PM

And where would I go about getting a nice big picture of the schematic? Best I've got is nice big pictures of the boards. (Kinda new at this...)



#6 Bill in Kansas City

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Posted 28 March 2014 - 07:25 AM

Let me refine my question: do you need a proper electrical schematic, or would a "this wire goes to the lower element" with arrows sort of thing do?



#7 Samurai Appliance Repair Man

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Posted 28 March 2014 - 07:50 AM

There should be a tech sheet cleverly hidden in the range.  Sometimes it's in a pouch taped to the back panel, sometimes in a pouch hidden in the pots drawer.  If you find an empty pouch, then you know the last guy that worked on it stole it. 



#8 Samurai Appliance Repair Man

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Posted 28 March 2014 - 08:06 AM

Did this kit come with any jumper wires?



#9 Bill in Kansas City

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Posted 28 March 2014 - 09:28 AM

No jumper wires, though the instructions call for at least one. Not sure about the pouch, but I doubt it. We got the stove second hand to begin with. Not at home, but wanted to reply anyway and keep the thread alive until I can check all this.

 

There are two differences between the boards that I can see:

 

1. new board separates the broiler and bake wires (upper and lower elements, I presume; the instructions call for yellow and purple); the old board just has a yellow wire.

 

2. new board calls for a black hot wire, white ground wire; old board has the white, but no black, red yes, black no.

 

The blue wire on the old board I'm not sure about and I'm not home to pop the back and check.

 

The new board does come with instructions that shows what wires go where, but the colors don't match what's there.

 

Will check all this when I get home and post an update. Thanks for the time so far! I remain hopeful.



#10 certified tech group 51

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Posted 28 March 2014 - 09:29 AM

I will go out on a limb here....... The red wire  on the original board will go to the terminal just left of the yellow sticker..( Purple dot relay )  ..A jumper wire will go from the top terminal , purple dot relay, to the  terminal on the yellow dot relay ..Terminal above the "R" on the 'DANGER' sticker......Follow the BLUE and the YELLOW wires, they probably go to the  elements ........... 'bake' ( purple dot ) and the 'broil' ( yellow dot )  ...............Those will go to the terminal above the color dots.............Terminal for the 'white neutral wire's'  appears to be located below the "Purple Dot" relay............Looked at the part on R/C and no jumper wire is indicated in the picture......( jumper from old part??)............ What does the instructions indicate for the wire locations, possibly  post the instructions   :thumbsup:   .........For the correct wire connections, we will need a wire schematic....... :rocker: ..............



#11 Bill in Kansas City

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Posted 28 March 2014 - 04:07 PM

No official Hotpoint schematic. I can't even find a manual online for the model.

 

HOWEVER.

 

I traced all the wires and drew up what's going on, and annotated the photo of the new part according to the instructions. I THINK I've got it figured out, but some confirmation would be appreciated. What threw me was the lack of a black power lead on the existing controller: that function was handled on the red side.

 

The existing wiring: https://www.dropbox....oint_wiring.png

 

The new part (annotated): https://www.dropbox....t-annotated.jpg

 

The instructions that came with it: https://www.dropbox....nstructions.jpg



#12 Bill in Kansas City

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Posted 28 March 2014 - 04:13 PM

...and there's no jumper on the old unit; it has fewer connection points than the new one. Sensei, I think you've got the right answer.



#13 Chat_in_FL

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Posted 28 March 2014 - 04:57 PM

Is this itAttached File  RB787WB.jpg   50.91KB   0 downloads?


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#14 Bill in Kansas City

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Posted 28 March 2014 - 05:45 PM

Permission denied. Can't download or view...



#15 Bill in Kansas City

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Posted 29 March 2014 - 06:58 AM

Sensei, you were right. Couldn't sleep and I was up early this morning, so before I could over-think it I made sure my tracing of the wires was correct and hooked them up, taking your post as encouragement. It all went together and as I'm typing, I'm breakfasting on a blueberry muffin from a working oven.

 

Thanks all for taking the time!

 



#16 Samurai Appliance Repair Man

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Posted 29 March 2014 - 08:45 AM

Permission denied. Can't download or view...

 

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