Toshiba Super MMY-MAP0601HT8 - TK4 Temperature Detective Circuit Error

181
Check code name
[H16] / [d7]
(d07 / AI-NET)
Check code name
TK4 temperature detective circuit error
(Sub-code: 04)
Cause of operation
1. Detachment of TK4 sensor, miscabling,
characteristics error of resistance value
2. Check clogging and malfunction of
SV3E valve circuit.
3. Oil-equalization circuit error
(Check capillary clogging, strainer
clogging)
4. Refrigerant stagnation in compressor
shell
Is not TK4 sensor detached?
Is there no miscabling or misinstallation
on TK1/TK2/TK3/TK4 sensors?
Check the clogging of SV3E valve.
*1 Refer to item [H07] error.
*2 If OCR operates even after manual reset of OCR, check whether the wiring to the
current sensor (TO2) of Comp-IPDU is correct or not.
Correct miscabling/misinstallation.
TK1: CN514
TK2: CN515
TK3: CN516
TK4: CN523
( )
YES
YES
YES
NO
NO
NO
Replace SV3E valve.
Correct installation of sensor.
Are characteristics of TK4 sensor
resistance value normal?
Check the clogging of SV3E valve.
(*1)
Error
No error
Does OCR of MG-SW operate?
YES
NO
Reset OCR manually.(*2)
Sensor error Replace
Check I/F P.C. board