Frigidaire PLEF398AC Electric Kitchen Range "clear f8 error code" Questions

F8 A/D Warning Replace Clock F9 Door Lock Warning Check door lock circuit or Replace Clock I tried a different method. I was able to get the door open after the F9 code. But it would not turn off once

...F8 Oven door lock failure Check lock relay and door switches. We have a Frigidaire Range model PLEF398CCC and, as many others here have mentioned, we saw the puff of smoke and the oven nor the front ...