Toshiba MMD-AP0721HP-UL1 Service Manual page 66

Check code
Outdoor 7-segment display
Main
remote
Check
Sub-code
control
code
01: TK1 oil circuit trouble
02: TK2 oil circuit trouble
04: TK4 oil circuit trouble
05: TK5 oil circuit trouble
H16
H16
Location
System
of Description
status
detection
I/F
Oil level
All stop
detection
circuit trouble
- 66 -
Trouble detection
condition(s)
• Check for disconnection of TK1 sensor.
Check resistance characteristics of TK1
•
sensor.
• Check for connection trouble involving
No temperature
TK1, TK2, , TK4, and TK5 sensors
change is detected
Check for clogging in oil equalizing
by TK1 despite •
circuit capillary and faulty operation in
compressor 1
check valve.
having been started.
• Check for refrigerant entrapment inside
compressor.
• Check for disconnection of TK2 sensor.
Check resistance characteristics of
•
TK2 sensor.
No temperature
• Check for connection trouble involving
change is detected
TK1, TK2, , TK4, and TK5 sensors
by TK2 despite
• Check for clogging in oil equalizing
compressor 2
circuit capillary and faulty operation in
having been started.
check valve.
•
Check for refrigerant entrapment inside
compressor.
Check for disconnection of TK4 sensor.
•
Check resistance characteristics
•
of TK4 sensor.
No temperature
• Check for connection trouble involving
change is detected
TK1, TK2, , TK4, and TK5 sensors.
by TK4 despite
Check for clogging in oil equalizing
•
compressor having
circuit capillary and faulty operation in
been started.
check valve.
• Check for refrigerant entrapment inside
compressor.
• Check for disconnection of TK5 sensor.
Check resistance characteristics
•
of TK5 sensor.
No temperature
•
Check for connection trouble involving
change is detected
TK1, TK2, , TK4, and TK5 sensors.
by TK5 despite
• Check for clogging in oil equalizing
compressor having
circuit capillary and faulty operation in
been started.
check valve.
•
Check for refrigerant entrapment inside
compressor.
Check items (locations)