Toshiba Super MMY-MAP0801HT8 - Page 200

200
Heating operation
Is indoor PMV normal?
Is SV5 circuit normal?
Is there a clogging?
Check and correct cabling.
Repair SV5 circuit.
Replace PMV body
.
Repair faulty parts.
Replace TC2 or TCJ sensor.Repair faulty parts.
Eliminate the interfered causes.
Refrigerant overcharge,
clogging, pipe breakage,
abnormal overload condition
Is connector
connection of indoor
heat exchanger fan or
fan motor normal?
Are characteristics
of sensor TC2 and TCJ
resistance normal?
Is connector connection
coil normal?
Does heating indoor fan
normally operate?
Is check valve of main
discharge pipe normal?
Are not indoor units of different
refrigerant circuit connected?
Check indoor P.C. board.
Faulty
Replace
C
Is there a cause to
interfere operation of
heat exchanger of indoor unit?
1. Air filter clogging
2. Heat exchanger clogging
3. Air short circuit
Coil error, choke,
disconnection of cable, etc.
( )
( )
Check with miscabling check function
of outdoor unit.
Repair check valve. Replace
YES
YES
YES
YES
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
YES
NO
NO
NO