Purchased this unit on 18/04/2004, it was giving good service till mid of 2009, but now it becomes an headache, it develops a fault that is un repairable or not properly understood by the team of your engineers & mechanics. The complaint is as under; * Once the unit DFF-40 stops at the set temperature it does not take restart automatically even after a long time gap & the temp rises & destroy the food stored inside. * The complaint was made to Customer Care, no body came for few days but in the mean time we... read full review »