F1-8 code timer # 1 keeps going off on

F1 Defective touch pad or clock (ERC)

Oven keeps beeping:
As there is no reprogramming of most control boards try this, disconnect the power and wait 30 seconds and then reconnecting the power.

If it's an "F1" fault code this generally implies an electronic oven control (EOC) failure. Disconnect the power, wait 30 seconds or longer and then reapply power. If "F1" returns upon power-up, replace the electronic oven control.
The oven control can be accessed and replaced from the rear of the control panel.

NOTE:Disconnect the power cord from the power source before removing the panel from behind the console.
If its an F2 ERROR CODE, The F2 error indicates an open circuit in the oven temperature probe.

if Your range has a resettable thermostat in series with the oven temperature probe. If this thermostat opens the clock will display F2 and the oven won't heat.
You can reset the thermostat by pushing in the reset button on top of the thermostat.
Some ovens have an alarm that will beep continuously every six seconds to alert you that the oven is still on. Usually, a kitchen timer that you have set will cause the beeping, but occasionally it can be an error with the oven's settings. If it is the kitchen timer, you can simply push the "Kitchen Timer On/Off" button to end the continuous beeping. If that does not stop the beeping, it is probably beeping due to an error. You can turn the continuous beeping off but you may still need to troubleshoot the issue that is causing the beeping noise.

Read more :

http://www.ehow.com/how_12086370_ge-oven-stop-beeping.html

F-7 error code means that the Function Key is stuck or shorted out. You will have to replace the touch pad or if the touch pad is part of the clock, you will have to replace the clock (ERC).

30" No.W46K03 or 318200413 S/C range.
When the bake is press and the timer is push to 400oC it instantly dropped to 100oC and takes 4hrs. to come to 250oC instead of 400oC . Please advice me

http://www.applianceaid.com/fault_codes.html

F7 stuck keypad
Stuck keypad may mean relay is turned on.
Determine if problem is with the Key Panel or Control by:
1. Pushing CLEAR/OFF pad.
2. Disconnecting Ribbon Cable from control and waiting at least 32 seconds to see if Code recurs

If code recurs, problem is in the control. Replace control.

If code does not recur, problem is with the Key Panel.

I have a jenn air SVE47600F.It just started beeping and giving a code 7.None of the controls work when it brings the code up,but controls work fine when code is not there. We have to turn the breaker off to reset it.Sometimes when we have been gone all day we'll come home and the range will be beeping and flashing a code 7

code F9 keeps flashing when I attempt to turn on my oven. What does this mean?

I have a jenn air range gas cooktop electric oven model # svd48600b the convection fan will not turn off and when you attenpt to use oven an error code F-3 appears and beeping sound what part is defective?

From what your telling me, you have tried all the numbers and only 1,4 and 7 beep when touched. Also, the timer display was set at 0:00 when you started. Also, you followed the manual's instructions first, and looked in the back of your manual in the trouble section, and found no answer. 
Did you timer ever work? If not, you should be able to a free replacement of the control panel module from an authorized Jenn-Air repair company. It may be a good idea to contact Jenn-Air first.
The timer shows only hours and minutes when first started. For example 2:05 is two hours and five minutes. It goes into the seconds mode only during the last minute.