Starting a thread for follow-up on Frigidaire oven controllers. I was looking for some information on the re-soldering of the relay board that was mentioned by PJmax in a 2018 posting on the same topic. The OP seemed to be leaning towards a new appliance rather than repairing it and PJmax let it go from there. He mentions having to re-solder the board at specific relays, but also mentions some #18 wire. This is the point that I am getting lost. What is the #18 wire for? I have already removed the control board and re-soldered the relay pins that were showing signs of bad connections. Reinstalled and the oven heats/broils great.. Thanks PJmax for saving me on this one! But I still have the question on the #18 wire? Is it just a matter of time before I have to take this apart again and do the repair correctly without the wire or is this wire a replacement pathway if the foils are burned out? Attaching pics of what I have.
Many times the hole where the relay comes thru gets larger or some of the pc board foils are melted. I'll remove the solder from the relay pin. Wrap the #18 around the relay pin and solder to a good piece of foil. You could add a second piece too. The wire provides a solid bridge for the solder.
Be sure to use good solder. If you "look around" you can still find lead based solder. That's all I use.
I also use an additional bit of liquid flux.
On your board.... resolder all the relay pins and the terminals where the heavy power wires connect.
They are all prone to future problems due to crap solder.
"On your board.... resolder all the relay pins and the terminals where the heavy power wires connect. They are all prone to future problems due to crap solder."
Thanks Pete for the info. on the connections. The board is back in and functioning at this point but I will keep this in mind if I should have reason to remove it for repair again.
When those boards are sent out for "rebuilding"..... the solder connections are basically what are repaired and improved.
The solder wave was not hot enough at the factory. The larger connections were not heated hot enough for a good bond. Add "lead free" solder on top of that and it spells future failure.
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01-03-22, 07:10 AM
