Toshiba RAS-24UKHP-ES-1 Service Manual page 51

[09 Other cycle error] (1) (Heat pump model)
Does compressor operate?
Is compressor
turned off shortly?
Is TC sensor
NO
resistance value
(10kΩ at 25°C) normal?
Replace TC
sensor.
Is TC sensor
YES
disconnected from
the sensing element?
Connect TC
sensor properly.
[09 Other cycle error] (2)
NO
Is connector
connected properly?
Connect
connector
properly.
NO
Is condenser normal?
Replace
condenser.
NO
Is indoor fan
motor normal?
Replace
fan motor.
NO
YES
Does inner
YES
overload relay
(in compressor)
operate?
NO
YES
Is circuit wiring
normal?
Is outdoor P.C.
board normal?
NO
NO
Are filters clogged?
YES
Is TC sensor
resistance value
(10kΩ at 25°C) normal?
YES
Is charged amount
of refrigerant normal?
YES
Is outside air
Indoor P.C. board
Check charged amount of refrigerant.
YES
NO
NO
YES
NO
Outdoor P.C. board
is defective.
YES
Indoor P.C. board
is defective.
Does indoor
fan operate?
YES
YES
NO
NO
YES
NO
Anti-freezing operation
YES
YES
Anti-freezing operation
low load?
NO
is defective.
– 49 –
FILE NO. SVM-03009
Check defective overload.
Check compressor.
Failure
Replace
compressor.
Wiring check/modification
Replace
P.C. board.
Replace
P.C. board.
Clean filters.
Replace
TC sensor.
Charge
refrigerant.
Replacd
P.C. board.