Codes and description
31
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.
7.2 Error Codes and Description indoor display
Code indication
indoor
Description
E1 Room temperature sensor failure
E2 Heat-exchange sensor failure
E4 Indoor EEPROM error
Indoor Malfunction
E14 Indoor fan motor malfunction
The code indication that is listed above is the main fault
+6824L/H(A
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