HSU09/12XCK-SM Codes and Description
DomesticAirConditioner
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7.Codes and Description
7.1.Problem Symptoms and Measures
Symptom Check Item Details of Measure
Check the power supply.
Check to make sure that the rated voltage is
supplied.
None of the units
operates
Check the indoor PCB
Check to make sure that the indoor PCB is
broken
Equipment operates
but does not cool, or
does not heat (only
for heat pump)
Diagnosis by service port
pressure and operating
current.
Check for insufficient gas.
Large operating
noise and vibrations
Check the installation
condition.
Check to make sure that the required spaces
for installation (specified in the Technical
Guide, etc.) are provided.
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