Need Appliance Repair Help? Ask a Technician for Answers ASAP
If the microwave is going back to control lock on it's own after you press and hold the clear/off button, then your display control board is just acting up. Try to unplug the microwave for 5 minutes to see if the electronics will reset if you haven't tried that yet. If that doesn't work, your entire display board would need to be ordered and replaced because the logic in the board is failing I'm sorry to say. The display board is part number WB27X10438 which is no longer made unfortunately. You may be able to get the board refurbished at a place like Appliancetimers.com, but other than that Searspartsdirect.com refurbishes the boards but they only sell them to you if they have a technician come out and install it for you. It may be time for a new microwave but that's completely up to you.
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