85
Check code
Location
of
detection
Description
System status
Error detection
condition(s)
Check items (locations)
Main
remote
controller
Outdoor 7-segment display
AI-NET central
control
remote
controller
Check
code
Sub-code
H07
H07
–
d7
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,
TK3, TK4, and TK5
sensors.
• Check resistance
characteristics of TK1,
TK2, TK3, TK4, and TK5
sensors.
• Check for gas or oil leak in
same line.
• Check for refrigerant
entrapment inside
compressor casing.
• Check SV3A, SV3B,
SV3C, SV3D, SV3E, and
SV3F 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
03: TK3 sensor
error
04: TK4 sensor
error
05: TK5 sensor
error
d4
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 TK3
sensor connector.
• Check resistance
characteristics of TK3
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).
Summary of Contents for A03-009
Page 149: ...148 ...
Page 153: ...152 9 2 1 Way cassette type SH AP015 AP018 AP024 ...
Page 161: ...160 9 4 Slim duct type MMD AP0074SPH AP0094SPH AP0124SPH AP0154SPH AP0184SPH ...
Page 165: ...164 9 5 Concealed duct standard type MMD AP0074BH AP0094BH AP0124BH AP0154BH AP0184BH ...
Page 166: ...165 ...
Page 169: ...168 MMD AP0244BH AP0274BH AP0304BH AP0364BH AP0484BH ...
Page 170: ...169 ...
Page 173: ...172 MMD AP0564BH ...
Page 174: ...173 ...
Page 177: ...176 E Parts ...
Page 179: ...178 9 6 Concealed duct high static pressure type MMD AP0184H AP0244H AP0274H AP0364H AP0484H ...
Page 183: ...182 MMD AP0724H AP0964H ...
Page 184: ...183 ...
Page 187: ...186 9 7 Ceiling type MMC AP0154H AP0184H AP0244H AP0274H ...
Page 190: ...189 MMC AP0364H AP0484H ...
Page 194: ...193 9 8 Floor standing type MMF AP0154H AP0184H AP0244H AP0274H ...
Page 195: ...194 MMF AP0154H AP0184H AP0244H AP0274H ...
Page 198: ...197 MMF AP0364H AP0484H AP0564H ...
Page 199: ...198 MMF AP0364H AP0484H AP0564H ...
Page 203: ...202 9 9 Floor standing concealed type MML AP0074BH AP0094BH AP0124BH AP0154BH AP0184BH ...
Page 206: ...205 MML AP0244BH ...
Page 209: ...208 9 10 Floor standing cabinet type MML AP0074H AP0094H AP0124H AP0154H AP0184H ...
Page 210: ...209 MML AP0074H AP0094H AP0124H AP0154H AP0184H ...
Page 213: ...212 MML AP0244H ...
Page 214: ...213 MML AP0244H ...