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mcedison  
#1 Posted : Thursday, November 11, 2010 9:15:34 AM(UTC)
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mcedison

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The digital display has quit working. Nothing on it lights up and the buttons won't do anything. Even the oven light will not come on but the ignition still works. I took out the circuit board and checked for voltage at L1 and L2 both are at 120v and the neutral circuit N checks good so I figured the board was bad. I replaced the circuit board and still have the same problem. Any ideas?

Thanks
David
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denman  
#2 Posted : Friday, November 12, 2010 4:31:42 AM(UTC)
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denman

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Here are your parts
Replacement parts for FRIGIDAIRE PLCS389DCB Frigidaire/gas Range | AppliancePartsPros.com

Here is the wiring diagram
http://manuals.frigidaire.com/prodinfo_pdf/Lassomption/318045091.pdf

Did you check L1 to L2 for 240 volts.
Often if you are checking for L1 and L2 using Neutral you will see the 120 volts on both sides but this is just from one side and it is feeding back through components and so is confusing.
Only way to properly check is to look for the 240 volts OR unplug the stove and check it at the plug.
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mcedison  
#3 Posted : Friday, November 12, 2010 4:59:52 AM(UTC)
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mcedison

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I measured at the circuit board 120volts on L1 and L2 to neutral. At the plug I measured the same.

David
denman  
#4 Posted : Saturday, November 13, 2010 1:38:19 AM(UTC)
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denman

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Power looks OK.

I would try disconnecting the keypad to see if the control board will light up.
This is a long shot.

Only other thing I can think of is that you received a bad control board.
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mcedison  
#5 Posted : Monday, November 15, 2010 11:41:55 AM(UTC)
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mcedison

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I tired unplugging the switch controls and same results: nothing lights up. What are the odds of 2 circuit boards doing the same thing? Is this a common failure with this model?

David
denman  
#6 Posted : Tuesday, November 16, 2010 12:43:27 AM(UTC)
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denman

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[COLOR="Blue"]What are the odds of 2 circuit boards doing the same thing?[/COLOR]
Odds are slim but it does happen.
It is all I can think of since everything else looks OK.
[COLOR="Blue"]
Is this a common failure with this model?[/COLOR]
I cannot say.
I did do a search on this site and on ApplianceJunk and could not find a problem the same as yours.
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mcedison  
#7 Posted : Wednesday, November 24, 2010 9:27:42 AM(UTC)
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mcedison

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Thanks for the help. It turned out the new board was defective. Plugged new board in and everything lit up.

Thanks for the help.
David
denman  
#8 Posted : Wednesday, November 24, 2010 11:47:09 AM(UTC)
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denman

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Glad to hear you have it up and running.

Defective replacement parts does not happen often but when it does it sure can be a pain and circuit boards are the worst as there is no way to check them before you install them.
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sawzalot  
#9 Posted : Sunday, August 14, 2011 1:15:32 PM(UTC)
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sawzalot

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Not looking to hijack this thread but I need some advice, I have the same model and have had it in storage for three years still in the box, well my kitchen remodel is finally done and I just gave away my full gas range and brought in the dual fuel range now I am ready to run my new three wire to the panel but I can not find the breaker size any where on the unit I see they ask for a 40 amp range cord, I will use a three wire with a ground but what size breaker should I go with, if all components are added up the formula shows about 19.444 amps, is this correct , do I really only need a 20 amp breaker, thanks for the help, Rob.
denman  
#10 Posted : Monday, August 15, 2011 1:52:45 AM(UTC)
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denman

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Should be a 40 amp breaker with number 8 wire.

Here is the install sheet
http://manuals.frigidaire.com/p...assomption/318045091.pdf

You may also want to keep a copy of the wiring diagram.
http://manuals.frigidaire.com/p...assomption/318201661.pdf
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