CHECK THERES IS NOT AN ICE BLOCKAGE IN THE DUCT BIHIND THE PANEL IN THE FREEZER WHERE THE FAN SITS CAN CLEAR USING A HAIR DRYER ALTERNATIVELY GET CUST TO DEFROST THOROUGHLY AND IT WILL CLEAR ITSELF
I AGREE DEFROST TIMER NORMALLY ROUTE CAUSE HENCE ICE BUILD UP IN 1ST PLACE HAIR DRYER A QUICK EASY FIX IF NOT ON VAN STOCK WITH R.F.T FIGURES AS EXPECTED WHEN WORKING FOR CERTAIN COMPANYS