What is the size of the R1 resistor in a Electrolux 3164627 Control Board found in a Frigidaire electric range. Mine is burnt and I can't see the color bars. Thank you.

R1 may be 220ohms.

A somewhat old thread but looks as though I'm not alone in having a fried R1.

In my case it burned off so completely there was only a puddle of copper, didn't recognize it as a resistor at all and thought it was just a jumper but tracing the tracks that didn't fit ... eventually found a picture online which showed it to be a 221 ohm 1% resistor.

However that still didn't make much sense as it is rated no more than 1/4 W and yet the current that could flow in it would be ~ 0.5 A (line to neutral) ... no surprise I found a puddle !

At any rate, as someone else noted, this resistor doesn't seem to have any real function unless intended as a fuse. Once blown and any other damage on the PCB is repaired (one contact on my relay had lost solder due to overcurrent), the oven works OK ... I decided to put a higher value in (220k) in case the intent was that the L2 end of the broiler/bake elements wasn't supposed to be left floating but that really won't give any protection (ESD maybe ? ;-)

Would love to hear from the designer why they thought a 221 ohm was a good idea there ... if it was dead short then the oven elements could be operated in quarter power mode from L1 to neutral, but the PCB traces are pretty light for the 9 A they would draw. Anyone else have any ideas ?

I haven't had any further issues since replacing it with a 220k but can't be sure I have kept it as safe as possible ... as far as I can tell, the resistor is only fried in the fault condition that only one of the relays activates. From the sound of it, your failed relay might have caused the resistor failure. I expect if you replace the relay and leave the resistor out you'll get it working, unless there is something else broken.