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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.
Steam got into key pay. Sometimes it will dry out. Take key pad apart and try to dry with a hair dryer, not to hot, you just want to blow condensation out of it. If this does not work, key pad needs to be replaced. The problem is they cost as much as a new microwave.
Hi Lindsay
Sound like you need a new key pad if you have some handy man around you you can replace it, It require dismantle the front key pad remove electronic part and clean then reinstall properly the key pad itself about $40.00 Aus
Let me know if you need part number for that key pad
Cheers
Your Control Key Pad is a circuit with each function and button a switch. The pad on your TV Remote, and Telephone is no different. The Key Pad is failing, It will only get worse. Determine if you can replace the Touch (Key) Pad. Not the Control Circuit, just the Touch Pad. Sometimes you can get it seperate. It connects by a Flex Cable to the Control Circuit.
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