Toshiba RAV-SM1603AT-E Service Manual page 103

[P19 error]
4-way valve normal?
NO Is flow of refrigerant
by electron expansion
Check and replace
electron expansion valve.
NO
of TC sensor resistance
Replace TC sensor.
• In cooling operation, if high pressure is abnormally raised, [P19 error]/[08 error] may be displayed. In this
case, remove cause of pressure up and then check again referring to the item [P04 error]/[21 error].
[F02 error]
Is connection of TC sensor connector
(Indoor P .C. board CN101) normal?
YES
Are characteristics of
TC sensor resistance value normal?
YES
Check indoor P .C. board.
Defect → Replace
NO
Is operation of
YES
valve normal?
YES
Are characteristics
∗
value normal?
YES
NO
NO
∗
4-way valve coil
conduction?
YES
Is 4-way valve
coil terminal 200V
NO
Is circuit cable normal?
Connection of CN01 on CDB
and CN13 on IPDU
(Both connectors are Red)
YES
Check CDB P .C. board.
Normal
Check indoor P .C. board.
Defect → Replace
∗
– 103 –
NO
YES
Check 4-way valve
Defect → Replace
NO
Check and
correct circuit.
Defect
Check CDB P .C. board.
Defect → Replace
Correct connection of connector.
Replace TC sensor.
Refer to 10-2-6. Relational graph of
temperature sensor resistance value
and temperature Characteristics-2.