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Kenmore Range C970-625481 oven not heating properly, need parts manual

weegeordie

Premium Member
Joined
Nov 21, 2021
Messages
14
Location
Ontario, Canada
Model Number
C970-625481
Brand
Sears Kenmore
Age
More than 10 years
I have an old Kenmore range, model C970-625481.

I'm trying to locate parts for it but none of the parts sites I find have that model number listed.

Is there a way to find such a manual or is it just too old?

The problem is not heating properly. I can get it to preheat up to 350 but over that it never gets there.
My first thought was the bake element so I did some research and found advice that said it should read 30 ohms or higher on a multimeter. Mine read under 20 so I assumed it was bad. Bought a replacement, $160, only to find it reads the same. And the oven still won't heat over 350. I'm guessing the advice was wrong and my original element is OK. Lesson learned.

Next I checked the heat sensor and its reads about 1,100 ohms, which I understand to be normal.

The next thing is the electronic controller. I'm thinking the price of the element and the controller might equal the price of a new range. But I would like to check first. That's why I'm looking for part numbers.

Any help would be appreciated. Thanks ...george
 

rickgburton

Appliance Tech - Moderator
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Messages
44,797
Location
Murray, Utah 84107, United States
I couldn't get anything for that number either. The problem is the control board.

Look for a number on the old board and I'll try to cross it. If the machine is older than 20 years then the control is most likely no longer available. There are a few places that rebuild them.

When checking any element, you need only to check it for continuity. Just like a light bulb, elements are either good or bad.
 

weegeordie

Premium Member
Joined
Nov 21, 2021
Messages
14
Location
Ontario, Canada
Thanks Rick. I will try to take the unit apart to find that number sometime during the week. I'm on the late shift so it might take a few days before I can get to it.

As for continuity, your saying that the fact that there was any ohm reading means the element was still functional? The reference I found to ranges was of little value.
 

rickgburton

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No problem. I'll be here.
your saying that the fact that there was any ohm reading means the element was still functional?
That's what I'm saying. When the light bulb in your lamp goes out, it doesn't get dimmer and dimmer then go out, it goes from on to off before you can blink. lol Same thing for the elements, bake, broil, convection, and surface units and even your dryer heating element They are all either good or bad and nothing in between. Remember before checking continuity on anything:

Unplug it-2.jpg
 

weegeordie

Premium Member
Joined
Nov 21, 2021
Messages
14
Location
Ontario, Canada
No problem. I'll be here.

That's what I'm saying. When the light bulb in your lamp goes out, it doesn't get dimmer and dimmer then go out, it goes from on to off before you can blink. lol Same thing for the elements, bake, broil, convection, and surface units and even your dryer heating element They are all either good or bad and nothing in between. Remember before checking continuity on anything:

View attachment 62587
OK. I'm back at it but I can't remember how to disassemble the front panel to get at the control board. I've got the top separated but I think I need to remove the display to access screws to remove the controller. Any help would be appreciated.
 

weegeordie

Premium Member
Joined
Nov 21, 2021
Messages
14
Location
Ontario, Canada
OK. I'm back at it but I can't remember how to disassemble the front panel to get at the control board. I've got the top separated but I think I need to remove the display to access screws to remove the controller. Any help would be appreciated.
I figured it out. Where will I find the number that identifies the board?
 

weegeordie

Premium Member
Joined
Nov 21, 2021
Messages
14
Location
Ontario, Canada
I called my local appliance parts store and gave them the first 9 digits, 318010400, and they said it is no longer available.

Google tells me there are refurbished parts available. Any recommendations for a reliable source?
 

rickgburton

Appliance Tech - Moderator
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Messages
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Here's a couple. I haven't used either one but others have and I haven't heard anything bad.

corecentrics.com circuitboardmedics.com
 

weegeordie

Premium Member
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Nov 21, 2021
Messages
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Location
Ontario, Canada
I contacted a repair company for a replacement and they refuse to send me one. They say it is impossible for what is happening to happen.
 

rickgburton

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Who said that?? Was it one of the board repair companies that said it's not possible to be the board??
 

weegeordie

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Joined
Nov 21, 2021
Messages
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Location
Ontario, Canada
Who said that?? Was it one of the board repair companies that said it's not possible to be the board??
It was a board repair company here in Ontario. Neither of the ones you provided. He told me if it will preheat to any temperature then it will preheat to ALL temperatures. Flat out REFUSED to let me buy one.
 

weegeordie

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Location
Ontario, Canada
My understanding is there are 3 functional parts of an oven. The elements, the heat sensor and the control board. After that its just wires and tin. Is it possible this guy is right and I have overlooked something?
 

rickgburton

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That guy is nuts! Find another place that rebuilds boards.
The elements, the heat sensor and the control board.
You're correct. The control board uses the power supplied by the outlet to control all the oven functions using the information from the oven sensor and user input.
The problem is not heating properly. I can get it to preheat up to 350
Let's make sure we are on the same page. Broil works without any problems and when set to bake at 300° the oven works without any problems. Over 350° is when you see the problem. The temperature won't go any higher. Is that correct?

Do you have a convection bake setting and element? The most common Frigidaire control uses all three elements to maintain the oven temperature on all settings except broil. So in bake mode the bake element turns on for X amount of time, the broil element and convection element turns on for X amount of time. The X amount of time changes depending on the current selection. Without being able to look it up I can't tell you the time values. Several years ago I had a service call where the oven sensor was erratic when it got hot. Check it at different temperatures.
C-Oven Sensor Ohms.jpg
 

weegeordie

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Joined
Nov 21, 2021
Messages
14
Location
Ontario, Canada
The preheat function works up to 350. I tried 425 and waited over an hour before giving up.

No convection. Just baking and broiler elements.

I have to disconnect the sensor wiring to connect my multi-meter. Will be difficult to test at various temperatures.
 

rickgburton

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Preheat function?? OK, it sounds like it's a little different model. Since I can't look it up, anything else would just be just guessing.
 
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