Horacio V Lubbock , TX October 19, 2016 Appliance: Electrolux Refrigerator EI28BS56IS9 Electrolux Refrigerator Ei28bs56is9: Icing over fan not working cooler to hot. How to replace Board-Switch. Replaced the main board which I got very quickly and correct one thanks to the representative that helped me over the phone. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes