Haier HSU18XH7-G Service Manual - Page 33
Codes and Description
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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. operates Check the indoor PCB Details of Measure Check to make sure that the rated voltage is supplied. 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 condition. installation Check to make sure that the required spaces for installation (specified in the Technical Guide, etc.) are provided. 31 Domestic air conditioner
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Domestic air conditioner
Functions and control
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.
HSU-18 24HEK13/R2
31