[Lakeleader2]

Two summers ago: F1 showed up on display. I messed with it a while w/ no luck. I could re-set it and restart but it would beep again, shut down and return to F1. As a last resort I re-set it, gave it a good hand slap right in the center of the panel and it worked fine. A week later this all happened again. Another good slap and it was fine until last summer when it acted up again. I used the same solution. It responded the same and made it all the way through until this summer. Same deal now. It seems that when the oven is not used for a good while during the summer [when it is humid???] it goes to F1.

I fear that eventually I will knock something loose if I keep slapping the snot out of the damn thing. I'm okay w/ taking it out, checking it over, putting it back, but what am I looking for?

Any advice would be greatly appreciated!! Lakeleader

PS: When I built my house I bought a bunch of appliances from SEARS. One year after warranty they started to go. In the last three years I have had to replace the SEARS Microwave, replace TWICE the control board on the SEARS dishwasher, had to recharge the SEARS refrigerator when it ran low on coolant. Also, the SEARS range hood won't run right and the SEARS washer has an annoying vibration that is noisy but SEARS says it is nothing to worry about. My wife insisted on only the top SEARS appliances. Seems like the only thing I have from SEARS that works is the refrigerator magnet with the number of their repair line. Take it from me, I will never buy anything from SEARS again.

[Gene]

Most likely there is a loose connection or a hairline crack in the control board. The only thing you can do is inspect the control board for a bad soldering.

- The control board (aka a clock/timer) Part number: AP2552888

Gene.

[Lakeleader2]

Should I assume the F1 problem has nothing to do w/ the temp sensor, then?

[Gene]

Yes, that's right.

Gene.

[denman]

You may also want to give this a try
Unplug the unit
Open it up
Remove the ribbon cable from the keypad to the control board at the control board.
Clean the edge connector.
If it is the type where there is not a connector just the insulation is removed, it can be cleaned with a pencil eraser. Do not use an ink eraser as it is too abrasive.
Check the tracks in the ribbon cable for hairline cracks. A magnifying glass helps here.
Would not hurt to clean the connector on the board. Use electronics contact cleaner or isopropyl alcohol and a tooth brush. Be gentle and do not reconnect till all the solvent evaporates.
Reconnect everything and give it a try.