How do I fix my oven if the key pad is not working?

The control panel is actually 2 different parts and either could be bad. Do you have the display still lighting up or is it completely dead? If it is out it could the main smart board. If it still lights but no buttons work then it could still be the smart board or just the key pads which are a separate part. Neither part can be fixed just replaced.

possible need new key pad.first check no loose connection from key pad to the control board,if not replace key pad

The pads actually share some of the same lines inside the touch pad. There are silver oxide traces inside there. If a trace inside breaks, it depends on which trace breaks as to what pads dont work. If a trace that is common to say pads 1,3,5,7 you would lose function of those pads. 1.....2.....3.....4......5....... it is sort of set up like that inside wher eone connects to another and so on. So lets say a line between 2 and 3 breaks then you would lose pads 3, 4, 5 and any others on that same line. Will have to replace touch pad, cannot repair.

Possible key pad failure and replacement will fix it.
Contact the manufacturer to gain a contact number for spares and availability.
Hope that helps.

HI. This is a basic communication issue that will concern, either the control board, or touch/Key pad assembly. Normally, this will produce a stuck key, which will cause one of the power relays to become suspended.

Determine if The problem is with the Key Panel or Control by:

1. Pushing CLEAR/OFF pad.
2. Disconnecting the key pad Ribbon Cable from control(main), 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.

• NOTE_ Some models incorporate the touch/Key pad into the ERC as a single assembly(Whole device), in which case this test is not necessary. Simply replace the ERC (Clock).

Dampness or moisture that gets into the membrane will cause this as well as it just wearing out over time, and the best fix is to replace the pad since the ability to work properly will be temporary at best.
Eric

HI, the key pad or, touch pad is defective. you will need to replace it asap if possible.

These key pads run about 130 dollars tops. contact Panasonic for this part.

If your appliance is newer than 1996 F0 error code is a stuck key pad .
To verify turn off power and access the control panel and remove the ribbon connector that goes from key pad to control board .
Now restore power.
If the F0 code goes away you'll have to replace the key pad .
If it stays it means the control board is bad.
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FO- the touch pad is faulty. replace the eoc(electronic oven control)

unplug it, then plug it back in! quick fix!