Check code
Location
of
detection
Description
System status
Error detection
condition(s)
Check items (locations)
Main
remote
controller
Outdoor 7-segment display
Check
code
Sub-code
H07 H07
–
I/F
Low oil level
protection
All stop
Operating compressor
detects continuous state of
low oil level for about 2 hours.
<All outdoor units in
corresponding line to be
checked>
• Check balance pipe
service valve to confirm full
opening.
• Check connection and
installation of TK1,
TK2, TK4, and TK5
sensors.
• Check resistance
characteristics of TK1,
TK2, TK4, and TK5
sensors.
• Check for gas or oil leak in
same line.
• Check for refrigerant
problem
inside
compressor casing.
• Check SV3A, SV3B,
SV3C, SV3D valves for
defect.
• Check oil return circuit of
oil separator for clogging.
• Check oil equalizing circuit
for clogging.
H08
H08
01: TK1 sensor error
02: TK2 sensor error
04: TK4 sensor error
05: TK5 sensor error
I/F
Error in
temperature
sensor for oil
level detection
All stop
Sensor resistance is infinity
or zero (open/short circuit).
• Check connection of TK1
sensor connector.
• Check resistance
characteristics of TK1
sensor.
• Check for defect in outdoor
P.C. board (I/F).
All stop
Sensor resistance is infinity
or zero (open/short circuit).
• Check connection of TK2
sensor connector.
• Check resistance
characteristics of TK2
sensor.
• Check for defect in outdoor
P.C. board (I/F).
All stop
Sensor resistance is infinity
or zero (open/short circuit).
• Check connection of TK4
sensor connector.
• Check resistance
characteristics of TK4
sensor.
• Check for defect in outdoor
P.C. board (I/F).
All stop
Sensor resistance is infinity
or zero (open/short circuit).
• Check connection of TK5
sensor connector.
• Check resistance
characteristics of TK5
sensor.
• Check for defect in outdoor
P.C. board (I/F).
H15 H15
–
I/F
TD2 sensor
miswiring
(incomplete
insertion)
All stop
Discharge
temperature of
(TD2) does not increase
despite compressor 2 being
in operation.
• Check installation of TD2
sensor.
• Check connection of TD2
sensor connector and
wiring.
• Check resistance
characteristics of TD2
sensor.
• Check for defect in outdoor
P.C. board (I/F).
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7
8
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Summary of Contents for MMY-MAP0806HT7(J)P
Page 306: ...For HT8 J P E HT8 J P TR model 305 ...
Page 307: ...For T8 J P T7 J P T8P SG T8 J P ID T8 J P T model 306 ...
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Page 314: ... 313 For T8 J P T7 J P T8P SG T8 J P ID T8 J P T model ...
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