2-4. Cooling
Problems Causes Checks Measures Remarks
High Refrigerant leak. Check sequence Weld the leaking part, recharge the Drier must be replaced.
temperature 1. Check the welded parts of the refrigerant.
in the freezer drier inlet and outlet and drier
compartment. auxiliary in the compressor
compartment (high pressure side).
2. Check the end of compressor
sealing pipe (low pressure side).
3. Check silver soldered parts.
(Cu + Fe / Fe + Fe).
4. Check bending area of wire
condenser pipe in compressor
compartment (cracks can
happen during bending).
5. Check other parts (compressor
compartment and evaporators in
freezer compartment).
Shortage of refrigerant. Check frost formation on the surface - Find out the leaking area, repair, Drier must be replaced.
of evaporator in the freezer evacuate, and recharge the
compartment. refrigerant.
- If the frost forms evenly on the - No leaking, remove the remaining
surface, it is OK. refrigerant, and recharge new
- If it does not, it is not good. refrigerant.
- 53 -
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