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HSU-18 24HEK13/R2
Functions and control
7.Codes and Description
7.1.Problem Symptoms and Measures
Symptom
Check Item
None of the units
Check the power supply.
Details of Measure
Check to make sure that the rated voltage is
supplied.
operates
Check the indoor PCB
Check to make sure that the indoor PCB is broken
Equipment
operates but does Diagnosis by service
not cool, or does port
pressure
and Check for insufficient gas.
not heat (only for operating current.
heat pump)
Large operating Check the installation Check to make sure that the required spaces for
noise
and condition.
installation (specified in the Technical Guide, etc.) are
provided.
vibrations
31
Domestic air conditioner