Frigidaire oven elements are never on.

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Old 02-18-16, 08:24 PM
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Frigidaire oven elements are never on.

A FRIGIDAIRE electric range (Model # FEFL77ASF) never turns on the heating elements of its oven.

The oven is rarely used (approximately 5 times per year). It stopped working recently. No matter which operation is selected (bake, broil, self-cleaning), the heating elements of the oven are never on.

I suspect the temperature sensor is out of order. I remember that when it was working properly, the Preheat light is turned on first, and it is turned off in a few minutes,then the Oven light is on. Now, the Preheat light is on for only a few seconds, then the Oven light is on, but the heating elements are never turned on.

Could anyone offer a tip on this?

Hong
 
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Old 02-18-16, 08:37 PM
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Are the top burners all working ok ?
Everything ok up top confirms that you have 240v into the range.

The problem is not your temperature sensor. If I had to make a guess.... it's a defective control board.

This is the back of your control board. I've circled the control relays. Based on experience.... the solder connections on the relays or in the area may be defective. If you are so inclined.... the board is repairable. If that's beyond your comfort level.... it can be replaced.

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Old 02-19-16, 04:45 AM
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Thanks a lot for the tip. I will check the board and report back.
 
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Old 02-23-16, 08:35 PM
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I have finally started looking into the control board. I cannot see anything wrong visually.

Since none of the oven functions (bake, broil, clean) works, I figure the problem is probably not a relay for one function (e.g. bake or broil). I am wondering if you could offer some tips on where I should look at.

The control board is 316255141


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Old 02-23-16, 10:26 PM
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That number you posted is the wiring diagram/schematic.

Both elements are tied directly to L2. They pick up L1 from the control board.

Can you shoot a picture of the back of the board..... just the relay half of the board. Make it as big as you can make it. If you have access to a pic hosting site.... put it there. The DIY board only allows small pics. I can't see enough detail if you post it here.
 
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Old 02-24-16, 05:07 AM
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Thanks a lot for looking into this. Here are the photos.

The diagram shows both broil and bake elements are connected to the terminal block (not sure what it is). I am wondering if there is anything wrong with it.

I checked temperature sensor and its resistance under ambient temperature looks about right. I also checked the resistance of the the broil and bake elements. Both are about 15 ohms. I think they are reasonable.
 

Last edited by Hong Zhang; 02-24-16 at 07:59 AM. Reason: additional information
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Old 02-24-16, 11:34 AM
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Thanks for the good pictures.

I highlighted the path of L1 (black wire) thru bake relay to yellow wire and thru broil relay to the blue wire. I don't see any solder/issue.

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When you select bake or broil..... do you hear any of the relays click on the board ?
 
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Old 02-24-16, 11:46 AM
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Thanks a lot for the elucidation.

Before I test it by putting my ear close to the relays, could you tell me whether I should put the two PCBs back into the enclosure? Is there anything that you would like to see on the other side of the board?
 
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Old 02-24-16, 12:43 PM
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Nothing else to look at. The circuitry looks ok.
 
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Old 02-24-16, 01:18 PM
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Hallelujah!!! It is working now. I do not know why. It did not work until a few hours ago. I am wondering if unplugging the power cable and and plugging it back reset some faulty circuit.
 
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Old 02-24-16, 05:02 PM
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Had you never disconnected power to the unit ?

I was remiss in not mentioning it. With just about any appliance.... the first thing to do when a logic type problem strikes is to remove and restore the power.
 
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Old 02-24-16, 05:21 PM
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No. It was my first time in many years to disconnect the power though we have a few brief power outages every year. I had no idea that power cycling could be a good remedy for an appliance problem. I only knew its usefulness for dealing with computer problems. Thank you again for all the tips. They are very educational. I will be much more prepared if the oven has a problem again.
 
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Old 02-24-16, 05:29 PM
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You are very welcome. It was a pleasure helping you.
 
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