Toshiba MMY-MAP0804HT8-E Service Manual page 186

Outdoor 7-segment display
Main
remote
Check
controller
code
H16 H16
H25 H25
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Check code
Location
AI-NET central
of
control
detection
remote
Sub-code
controller
01: TK1 oil I/F
circuit error
02: TK2 oil
circuit error
03: TK3 oil
circuit error
04: TK4 oil
circuit error
05: TK5 oil
circuit error
d7
I/F
–
manuals search engine
System Error detection
Description
status condition(s)
Oil level All stop No temperature
detection change is detected
circuit error by TK1 despite
compressor 1 having
been started.
No temperature
change is detected
by TK2 despite
compressor 2 having
been started.
No temperature
change is detected
by TK3 despite
compressor 3 having
been started.
No temperature
change is detected
by TK4 despite
compressor having
been started.
No temperature
change is detected
by TK5 despite
compressor having
been started.
TD3 sensor All stop Air discharge
miswiring temperature (TD3)
(incomplete does not increase
insertion) despite compressor
3 being in operation.
185
Check items (locations)
• 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.
• 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.
• 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 for disconnection of TK4 sensor.
• Check resistance characteristics of
TK4 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 for disconnection of TK5 sensor.
• Check resistance characteristics of
TK5 sensor.
• Check for connection error involving
TK1, TK2, TK3, TK4, and TK5 sensors
• Check for faulty operation in SV3E
valve.
• Check for clogging in oil equalizing
circuit capillary and faulty operation in
check valve.
• Check for refrigerant entrapment inside
compressor.
• Check installation of TD3 sensor.
• Check connection of TD3 sensor
connector and wiring.
• Check resistance characteristics of
TD3 sensor.
• Check for defect in outdoor P.C. board
(I/F).