6 Troubleshooting
Troubleshooting by protection code (Outdoor unit)
SMGB0135 rev.0 - 06/2020
77
6
Protection
code
P111
Fan abnormality 1
• Outdoor unit LED301 blinks 11 times.
• This protection code is displayed continuously until the abnormal situation ends, without leading to an alarm.
LD301 blinks 11 times
Fan stopped due to strong wind
Yes
Momentary interruption due to strong wind.
Operation is resumed when the wind weakens.
Is the wind strong? Check
whether restart is possible.
(It may take several minutes
before restarting)
Check the outdoor fan motor (For
details, see the page on the outdoor
fan motor or the label on the cover
of the electrical parts). Is there an
abnormality of the outdoor fan motor?
This is not a sign of a failure in
the outdoor fan motor or outdoor
electrical parts.
Replace the outdoor fan motor.
Fan motor normal
Fan motor
abnormal
It stops
Replace the outdoor electrical
parts (due to abnormality in the
drive circuit of the outdoor fan).
Protection
code
P112
Fan lock, Fan abnormality 2
• Outdoor unit LED301 blinks 12 times.
• This protection code is displayed 3 times before alarm 112 appears at the LCD controller.
LD301 blinks 12 times
Fan lock stopped
Yes
Operation stopped due to the detection of abnormality
of the outdoor fan. It may be a momentary interruption
due to strong wind, introduction of foreign objects in
the propeller fan, abnormality of the outdoor fan motor
or abnormality of the drive circuit.
Check whether foreign objects are
inserted at the propeller fan, or
if there is any abnormality at the
propeller fan.
Is the wind strong? Check
whether restart is possible.
(It may take several minutes
before restarting)
Check the outdoor fan motor (For
details, see the page on the outdoor
fan motor or the label on the cover
of the electrical parts). Is there an
abnormality of the outdoor fan motor?
Check whether the connectors of
the outdoor fan motor are loose.
Remove all the foreign matter.
In case that the abnormality
of the propeller fan persists,
replace the propeller fan.
Insert the connector.
This is not a sign of a failure in
the outdoor fan motor or outdoor
electrical parts.
Replace the outdoor fan motor.
Fan motor normal
Fan motor
abnormal
Operation continues after restart.
Abnormal
Abnormal
Normal
Normal
It stops
Replace the outdoor electrical
parts (due to abnormality in the
drive circuit of the outdoor fan).
Protection
code
P113
EEPROM error
• Outdoor unit LED301 blinks 13 times.
• This protection code is displayed 3 times before alarm 113 appears at the LCD controller.
Yes
Replace the outdoor electrical
parts (due to abnormality in the
microcontroller or the EEPROM).
LD301 blinks 13 times.
EEPROM reading error
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