Toshiba MMY-MAP0804HT8P-E - Page 209

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Strainer
Capillary
TK2
Error
No
Yes
No
Yes
No
Yes
No error
No error
Error
[H16]
esuaCedoc kceh
C
Check code name
Oil level detection circuit error TK2 temperature detective circuit
error (Sub-code: 02)
1. Coming-off of TK2 sensor, miswiring, characteristics
error of resistance value
2. Oil-equalization circuit error (Check valve, capillary
clogging, strainer clogging)
3. Refrigerant stagnation in the compressor shell
Is not TK2 sensor
detached?
Is there
no miswiring or
misinstallation on
TK1/TK2/TK3/TK4/TK5
sensors?
Are
characteristics of TK2
sensor resistance
value normal?
Check the clogging
of SV3E valve.
(Note 1)
Correct installation of
sensor.
Sensor error Replace clogging part. Replace SV3E valve.
Check I/F P.C. board
Correct miswiring/misinstallation.
TK1: CN531, black
TK2: CN532, green TK3: CN533, pink
TK4: CN534, yellow
TK5: CN535, red
Start a test operation in COOL or HEAT mode.
↓
Display TK2 sensor temperature on 7-segment display with SW01/02/03=[1] [13] [2].
↓
Check TK2 sensor temp approx. 10 minutes after compressor 1 has operated.
If low temperature continues (approximately outside temp) or temperature has
little change, a clogging of strainer of oil-equalization circuit, clogging of
capillary tube, or malfunction of check valve is considered.
Compressor
2
(Note 1) Refer to the article of the check code [H07].
After resetting
the power
[H15]
Yes
Yes
No
No
esuaCedoc kcehC Check code name
Outdoor discharge temperature sensor (TD2) misconnection
1. Coming-off of TD2 sensor 2. Misinstallation of TD1, TD2, or TD3 sensor,
miswiring, characteristics error of resistance value
Is there no
miswiring or
misinstallation on
TD1/TD2/ TD3
sensors?
Are resistance
characteristics of TD2
sensor normal?
Correct miswiring/misinstallation. TD1: CN502, white
TD2: CN503, pink TD3: CN504, blue
No
Yes
Is TD2 sensor
installed correctly?
Correct installation of sensor.
Check I/F P.C. board.
Sensor error
Replace the sensor.
*See “Outdoor unit temperature sensor
characteristics” on “8-9. Sensor Characteristics”.