Toshiba MMU-AP0094HP1-E, Service Manual

Page: 77 / 117

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FILE NO. SVM-
16041
H16 H16
SMMS
(1 series)
01: TK1 oil
circuit error
02: TK2 oil
circuit error
03: TK3 oil
circuit error
04: TK4 oil
circuit error
I/F Oil detection
circuit error
All stop The temperature
change of TK1
cannot be detected
even after
Compressor 1 starts
operating.
Check the TK1 sensor installation.
Check the TK1 sensor resistant
characteristics.
Check the misconnection of TK1, TK2,
TK3, or TK4.
Check the SV3E valve error.
Check the oil circuit capillary clogging
and non-return valve error
Check the hibernating refrigerant in
compressor.
SMMS
(1 series)
01: TK1 oil
circuit error
02: TK2 oil
circuit error
03: TK3 oil
circuit error
04: TK4 oil
circuit error
I/F Oil detection
circuit error
All stop The temperature
change of TK2
cannot be detected
even after
Compressor 2 starts
operating.
Check the TK2 sensor installation.
Check the TK2 sensor resistant
characteristics.
Check the misconnection of TK1, TK2,
TK3, or TK4.
Check the SV3E valve error.
Check the oil circuit capillary clogging
and non-return valve error.
Check the hibernating refrigerant in
compressor.
The temperature
change of TK3
cannot be detected
even after
Compressor 3 starts
operating.
Check the TK3 sensor installation.
Check the TK3 sensor resistant
characteristics.
Check the misconnection of TK1, TK2,
TK3, or TK4.
Check the SV3E valve error.
Check the oil circuit capillary clogging
and non-return valve error.
Check the hibernating refrigerant in
compressor.
The temperature
change of TK4
cannot be detected
even after
Compressor 4 starts
operating, or the
temperature
difference from that
of the other TK
sensor changes only
in the specified
range for a given
time or longer.
Check the TK4 sensor installation.
Check the TK4 sensor resistant
characteristics.
Check the misconnection of TK1, TK2,
TK3, or TK4.
Check the SV3E valve error.
Check the oil circuit capillary clogging
and non-return valve error.
Check the hibernating refrigerant in
compressor.
SMMS-i
(4 series)
01: TK1 oil
circuit error
02: TK2 oil
circuit error
03: TK3 oil
circuit error
04: TK4 oil
circuit error
05: TK5 oil
circuit error
I/F Oil level
detection
circuit error
All stop No temperature
change is detected
by TK1 despite
compressor 1 having
been started.
Check for disconnection of TK1 sensor.
Check resistance characteristics of
TK1 sensor.
Check for connection error involving
TK1, TK2, TK3, TK4, and TK5 sensors
Check for faulty operation in SV3E or
SV3F valve.
Check for clogging in oil equalizing
circuit capillary and faulty operation in
check valve.
Check for refrigerant entrapment inside
compressor.
No temperature
change is detected
by TK2 despite
compressor 2 having
been started.
Check for disconnection of TK2 sensor.
Check resistance characteristics of
TK2 sensor.
Check for connection error involving
TK1, TK2, TK3, TK4, and TK5 sensors
Check for faulty operation in SV3E or
SV3F valve.
Check for clogging in oil equalizing
circuit capillary and faulty operation in
check valve.
Check for refrigerant entrapment inside
compressor.
No temperature
change is detected
by TK3 despite
compressor 3 having
been started.
Check for disconnection of TK3 sensor.
Check resistance characteristics of
TK3 sensor.
Check for connection error involving
TK1, TK2, TK3, TK4, and TK5 sensors
Check for faulty operation in SV3E or
SV3F valve.
Check for clogging in oil equalizing
circuit capillary and faulty operation in
check valve.
Check for refrigerant entrapment inside
compressor.
Check code
Location
of
detection
Description
Error detection
condition(s)
Check items (locations)
Outdoor 7-segment display
Sub-code
Check
code
Main
remote
controller
System status