Fire flash when oven is started. Have instantly pushed stop button to turn it off. Have used wash cloth to clean interior with continuing problem .

After the preheat cycle you must enter time (baking time) again and push enter/start.

Hello - Interior cleaning after convection, mix or broil cooking:

Spatters may occur because of moisture and grease. Wash immediately after use with hot, soapy water. Rinse and polish dry. Harder to remove spatters may occur if oven is not thoroughly cleaned or if there is long time/high temperature cooking. If so, you may wish to purchase an oven cleaner pad with liquid cleaner within it-not a soap filled steel pad-for use on stainlessor porcelain surfaces. Follow manufacturer's directions carefully and be especially cautious not to get any of the liquid cleaner in the perforations on the wall or ceiling or any door surfaces. Rinse thoroughly and polish dry. After cleaning the interior thoroughly, residual grease may be removed from the interior ducts and heater by simply operating the oven on 450 F for 20 minutes without food. Ventilate the room if necessary.

Interior cleaning after microwave cooking:

Cleaning is easy because no heat is generated to the interior surfaces; therefore, there is no baking and setting of spills or spattering. To clean the interior surfaces, wipe with a soft cloth and warm water. DO NOT USE ABRASIVE OR HARSH CLEANERS OR SCOURING PADS. For heavier soil, use baking soda or a mild soap; rinse thoroughly with hot water. NEVER SPRAY OVEN CLEANERS DIRECTLY ONTO ANY PART OF THE CONVECTION MICROWAVE OVEN.

You must dismantle the circuit board and check if some grease vapours between touch buttons and the the circuit film. Clean with some wet soft cloth.

Check the three microswitches in the latch assembly.

A common mistake people make when cleaning appliances is to spray cleaner on the keypad, then wipe it off. Unfortunately, this is wrong, and can allow some of the cleaner to work its way around the edges and into the contact surfaces. Over time they may dry and start to work again, but there really isn't any way to repair the problem except by replacing the keypad if they don't work.

I've seen this oftent, especially on TV sets where people spray the face of the picture tube and the cleaner runs down onto the circuit board inside. All kinds of weird things can happen then. The correct way to clean is to spray a cloth or paper towel with the cleaner and then wipe the keypad. On the interior, you can spray the cleaner directly on the cooking cavity surfaces. Just watch for the hole in the bottom where the turntable shaft comes through if your oven is so equipped. You want to avoid flooding the turntable motor, so use the spray sparingly, or spray the cloth first and wipe.

I haven't yet been able to find a source for the keypad. For small ovens, it's often hard to find model-specific parts like the keypad. And when you can find them, it's sometimes not much less expensive than a new oven. (A local store in my area advertised a 900-watt countertop oven for $59 in Sunday's newspaper.) If I do locate a part number, price and source, I'll post a follow-up comment with the information. But you'll probably be better off replacing the oven if the keys don't heal themselves.

call kitchenaid and complain they might fix it under warranty or replace the unit,, or possibly heard of this and have a fix i persoonally never heard about it good luck mate

There are two options here:

1. Order a new control panel frame which has the keypad, trim piece and door button already installed and swap your control boards into it.

The original part number FPNLCB346MRK0 has been replaced by part # FPNLCB346MRK0B and it runs $58.28 plus shipping.

2. Disassemble your control panel frame, peel off the old keypad and stick a new one on.

Even though the keypad alone runs only $35.66, this job takes a lot of time and labor.

If you (or someone you know) might want to replace just the keypad yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

Whichever option you choose, we have the service manual for this model and have uploaded it to our site here to help you.

You will need the free Acrobat Reader to view or print it in case you don't have it already.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

If you have an "options" pad, press that and you should be able to get to the message sub-menu. If not, you may have gotten too much moisture in the key pad when you cleaned it and it will either need to be replaced or might possibly return to normal after drying out completely for a few days

the door switch is likely stuck open.

From GEAppliances.com: Microwave - Cleaning Recommendations To minimize the possibility of electric shock, unplug the microwave from the power supply before attempting any maintenance or cleaning. Spills and spatters clean up easily with a damp, soapy paper towel or sponge. It is best to clean soil as soon as it appears. Baking soda and water may also be used. If the food has cooked onto the interior, heat one cup of water on full power for three minutes. The heat and steam help to soften the food. After the three minutes, allow five additional minutes stand time then clean as usual. A non-abrasive scrubbing pad cleaner works well for stubborn stains. You may use mild dish washing liquid or cleaners specifically listed for cleaning interiors of microwave ovens such as MicroBryte® (wx10x3030) or Microwave Oven Magic®. We do not recommend using other detergent based cleaners because they can cause the plastic parts to crack. You may purchase microwave interior cleaner by calling our parts department at 1-800-626-2002, on-line from GE Parts or from your local grocer. For stainless steel interiors of microwave/convection models, we recommend a plastic, soap-filled scouring pad. Rubbing gently with this pad will help remove soil. For the door surfaces (both interior and exterior) We recommend you use only mild, non-abrasive soaps, or detergents applied with a sponge, or soft cloth. For the control panel Wipe with a soft, damp cloth. Dry immediately with a soft cloth. Do not spray any solution directly onto the controls Important: Commercial Oven Cleaners, abrasive cleaners, or cleaners containing ammonia or bleach (can make the plastic brittle) should not be used on any part of the microwave. -- From me - Maybe local restaurants in your area would have some tips? Otherwise, try a Google search for keywords: cleaning stainless steel oven