Refrigerator Model:HBC-70/200(India)20MAINTENANCE SERVICE AND TROUBLE SHOOTING(3) The cover temperature of The evaporator can be as low as-30℃it will feel sticky when touching. If you’d like to touch,please move your hand over it quickly, otherwise your hand willbe stuck.(4) At normal operation of refrigerator, the temperature of filterdryer cover is similar to room temperature, only a little warmer. Ifthe cover temperature is much higher or lower than that ofenvironment, and there is frost, there must be problem with therefrigeration system.Touching the above mentioned parts, if there is big temperaturedifference compared with normal, there must be problem andfurther decision should be made.12.1.6 System noise repairNormally there are two kinds of refrigerator noise, one is thenatural noise of compressor and fan, and the other is theresonance noise or structural noise. The natural noise ofcompressor and fan is controlled within a standard range, if therange is exceeded, the compressor or fan needs to be repaired orchanged. The resonance or structural noise can be handled asfollows:PDF created with pdfFactory trial version www.pdffactory.com