26
Error Code Meaning of error code and detection method
Cause
Countermeasure
P6
Freezing/overheating protection is
working
1
Freezing protection (Cooling mode)
The unit is in six-minute resume prevention
mode if pipe temperature stays under
-15
:
for three minutes, three minutes
after the compressor started. Abnormal
if it stays under -15
:
for three minutes
again within 16 minutes after six-minute
resume prevention mode.
<Frost prevention mode>
If pipe temperature is 1
:
or below
when 16 minutes has passed after com-
pressor starts operating, unit will start
operating in frost prevention mode which
stops compressor operation. After that,
when pipe temperature stays 10
:
or
more for 3 minutes, frost prevention
mode will be released and compressor
will restart its operation.
P8
1
Slight temperature difference
between indoor room
temperature and pipe tempera-
ture thermistor
• Shortage of refrigerant
• Disconnected holder of pipe
thermistor
• Defective refrigerant circuit
2
Converse connection of
extension pipe (on plural units
connection)
3
Converse wiring of indoor/
outdoor unit connecting wire
(on plural units connection)
4
Defective detection of indoor
room temperature and pipe
temperature thermistor
5
Stop valve is not opened
completely.
(Cooling or drying mode)
1
Clogged filter (reduced airflow)
2
Short cycle of air path
3
Low-load (low temperature)
operation beyond the tolerance
range
4
Defective indoor fan motor
• Fan motor is defective.
• Indoor controller board is
defective.
5
Defective outdoor fan control
6
Overcharge of refrigerant
7
Defective refrigerant circuit
(clogs)
(Cooling or drying mode)
1
Check clogs of the filter.
2
Remove shields.
4
Measure the resistance of fan motor's winding.
Measure the output voltage of fan's connector
(FAN) on the indoor controller board.
W
The indoor controller board should be
normal when voltage of AC 220~240V is
detected while fan motor is connected.
Refer to 7-7.
5
Check outdoor fan motor.
67
Check operating condition of refrigerant
circuit.
Abnormality of pipe temperature
<Cooling mode>
Detected as abnormal when the pipe tem-
perature is not in the cooling range 3 min-
utes later of compressor start and 6 min-
utes later of the liquid pipe is out of cooling
range.
Note 1) It takes at least 9 min. to detect.
Note 2) Abnormality P8 is not detected in
drying mode.
Cooling range : -5 deg
]
(TH2-TH1)
TH2: Liquid pipe temperature
TH1: Intake temperature
1
~
4
Check pipe temperature with room
temperature display on remote
controller.
23
Check converse connection of extension
pipe or converse wiring of indoor/outdoor
unit connecting wire.
1
Wrong wiring of indoor/outdoor
connecting wire
2
Reversed phase
3
Protection device is working
4
Damaged outdoor coil thermis-
tor
Abnormality in outdoor unit
1
Check the indoor/outdoor connecting wire.
2
Change the connection of electric wiring.
3
Check the protection device.
4
Measure the resistance of the outdoor coil
thermistor. If the resistance is normal,
replace the outdoor controller board.
OC394--1.qxp 06.5.23 5:44 PM Page 26
Summary of Contents for Mr.SLIM PE-3EAK
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