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Items to be checked Possible malfunction
Has the unit been fixed firmly?
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage test?
It may cause insufficient cooling(heating)
Is thermal insulation sufficient?
It may cause condensation.
Is water drainage satisfactory?
It may cause water leakage.
Is the voltage in accordance with the rated
voltage marked on the nameplate?
It may cause electric malfunction
or damage the unit.
Is the electric wiring or piping
connection installed correctly and securely?
It may cause electric malfunction
or damage the parts.
Has the unit been securely earthed?
It may cause electrical leakage.
Is the power cord specified?
It may cause electric malfunction
or damage the parts.
Is the inlet or outlet blocked? It may cause insufficient cooling(heating)
Is the length of connection pipes
and refrigerant capacity recorded?
The refrigerant capacity is not accurate.
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