Symptom-based Troubleshooting
ESIE15-13B
110
Service Diagnosis
Troubleshooting
*: Refer to “Test Operation” on P.58.
This is normal. Heating
operation will be conducted after
2 or 3 minutes (
∗
).
YES
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
NO
Wait for a while.
No abnormality
Is the unit in defrost mode?
YES
NO
NO
NO
Measure the temperature of suction
air and discharge air. Temperature
difference = Suction air temp. –
Discharge air temp.
No abnormality
After vacuum drying, charge
correct amount of refrigerant.
YES
YES
YES
Additional unit installation
should be considered.
* Incorrect selection of model
* Affection of sunlight
* Affection of excessive fresh air into
room
NO
Refrigerant shortage possibly
generates trouble.
YES
* Insufficient compression of
compressor
* Insufficient circulation of refrigerant
* Faulty electronic expansion valve
Check the each item.
* Clogged air filter
* Soiled heat exchanger
* Defective indoor fan motor (Refer to
troubleshooting “
A6
”)
Check the each item.
Check the each item.
* Refrigerant overcharge
* Soiled heat exchanger
* Short circuit of discharge air
* Disturbing item in airflow
* Defective fan motor of outdoor unit
(Refer to troubleshooting “
E7
”.)
NO
YES
NO
Is this first starting
after installation?
Temperature
difference for heating should be
between 14 and 30˚C.
Does the
heat load increase after
installation of the unit?
Is the
operation current less than
specified level?
Does indoor unit
airflow rate down?
Is the level
of high pressure lower than
normal level?
Summary of Contents for GQI-Eco Series
Page 2: ......
Page 6: ...ESIE15 13B iv Table of Contents...
Page 14: ...Introduction ESIE15 13B xii...
Page 18: ...Outlook Outdoor Units ESIE15 13B 4 General Information 2 Outlook Outdoor Units...
Page 22: ...Operating range ESIE15 13B 8 General Information...
Page 108: ...Emergency Operation ESIE15 13B 94 Field Setting...
