Answer Hello Richard, You can either unplug the unit and prop the doors open or pull the tech sheet and force a defrost cycle. I'm sorry but I cannot pull any information with the model number provided as it is not coming up as a valid model number. If you could possibly please re-post with the model number from the units' I.D. tag, we will be happy to assist you further. Thank you for your patience and understanding in this matter. Read More... Answered by AppliancePartsPros.com | Friday, August 7, 2015