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niallp  
#21 Posted : Friday, December 18, 2020 11:27:08 AM(UTC)
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niallp

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Looks like some progress since the last time I checked in ... guessing the burning of R1 could be related to relay flakyness, ie if L2 fails when L1 switches.

Just had another failure after almost a year working, replaced fried R1 again, this time with PTC in series to limit current.

Would be nice if they just could provide a robust replacement board but might be time for a new range :-/

Edited by user Friday, December 18, 2020 2:27:20 PM(UTC)  | Reason: expand on failure mode/repair

ThatGuy  
#22 Posted : Friday, December 18, 2020 6:08:00 PM(UTC)
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My guess is the main relays need to be replaced. They eventually burn their contacts and start sticking on or not making good contact. Both bad. Probably causes the 220 ohm resistor to blow when they stick. Relay failure is one of the most common reasons for board replacement.
Sum-Guy  
#23 Posted : Saturday, December 26, 2020 2:41:30 PM(UTC)
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Sum-Guy

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Hey, I wonder if you guys can help me out. Someone near me put out a stove at the curb - a Kenmore, stainless steel, convection with warming drawer. I have the stove now. It's in great shape, but there was a problem with the control board.

The board model number is 3164627, Rev F. I think this is the same board you're talking about in this thread. The connector for the L2 relay was browned up, specifically the L2 connector. The relay pin for that connector (the L2 out) had lost all its solder so it was no longer making contact on the PCB. The R1 resistor is fine. I figure either there is something wrong with the L2 relay or it was a bad solder joint. I haven't done anything yet with the board, just looking on digikey for relays.

My main question for now is - there are 2 white relays on the board, for P9 and P7, which is Bake and broil. P11 is for Conv - which is I guess the convection element? The stove has a fan on the back oven wall so I assume there should be a convection element behind the wall, but on the board there is no matching white relay for P11, just a blank space where the relay could be (K7 I think). Should there be a relay there? Or is it possible the board I have in this oven was a replacement board and didn't have the convection relay?
Guest  
#24 Posted : Monday, April 5, 2021 4:41:30 PM(UTC)
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Guest

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I had exactly the same problem.

There is no third relay. on the 3164627 board.

This stove's convection works by constantly switching between the top and bottom elements. It seems to cause a lot of wear and tear on the relay.

The relay with the de-soldered pin needs to be replaced.

I'm in Canada. I ordered it from newark.com, stock 34R9918, Manufacturer part T9AV5L12-12 and it was delivered in two days.
Kurt-YYC  
#25 Posted : Sunday, April 11, 2021 12:07:35 PM(UTC)
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Hi all,

Thanks so much to this thread I was able to fix my Kenmore Elite Induction Oven (Model C970-441331 ). The problem was it wasn't heating up quick enough for most of the time but occasionally it would give me the run-away temperature error code. The oven would quite noticeably heat up very quickly and burn food. I also noticed that only one element would be on as indicated by the display. Convection would not work. I was stuck with a very slow or extremely fast bake setting. Something was awry.

I tested the oven thermostat and it was fine at around 1100 ohms. So I popped off the control board and saw that the R1 resistor was fried. I tested the relays as indicated in this thread. The bake one sounded to be in good working order, clear switching noise when I placed a 9V battery on the terminals. The other two, convection and broil, had a much weaker switching sound when I tested them so I suspected something was wrong with them.

I ordered the parts from Digi-Key and they were shipped over night pretty cheaply (unreal!). The part list is below using Digi-key part numbers. Thank you to whomever described what resistor is needed for this because mine was fried beyond recognition and I couldn't see the colour bands

Relay
PART: G5RL-1-E-HRDC12-ND
MFG : Omron Electronics Inc-EMC Div / G5RL-1-E-HR DC12
DESC: RELAY GEN PURPOSE SPDT 16A 12V

Resistor
PART: PPC221XCT-ND
MFG : Vishay Beyschlag/Draloric/BC Components (VA) / SFR16S0002210FR500
DESC: RES 221 OHM 1/2W 1% AXIAL

It was a pretty easy fix to desolder and solder in the new parts. I ended up replacing all three relays and the resistor for under $20 Canadian. The most difficult part was finding accurate information on the parts needed. I spent hours researching this! I wanted to make this reply with concise information to hopefully help someone else in the future!

Thank you again!

Edited by user Sunday, April 11, 2021 12:09:46 PM(UTC)  | Reason: added more details

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