My friend have ice cream van he is freezer not cold like used to be temprature _12 but should be _28 now ice cream melted .what can do to hellp him
Step by step look for the obvious such as; is the condenser clean on the unit outside the box, is the condenser fan motor running, is the coil inside iced up. These are common problems with freezers.
If the coil is frosted over the problem may be related to the defrost timer. Rotate the timer as per the arrows to the defrost position to defrost. This should cause the coil to defrost. If this does defrost the coil replace the timer.
If the condenser fan motor does not rotate with the compressor running, rotate the fan blade manually, if it is the least bit tight the bearings may be dry or gummed up, oil the motor with non-detergent oil SAE-20.
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