Toshiba RAV-GM1601ATP-E (TR) Service Manual page 65

Check Outdoor
code LED display
[H02]
[H03]
[H04]
(Item without special mention Indicates part of outdoor unit.)
[Compressor lock]
Is power supply voltage normal?
AC198 to 264V
YES
Is wire connection correct?
Compressor lead
(P.C. board side, Compressor side),
Reactor lead, Power supply lead
YES
Is compressor under correct conditions?
YES NO
Is there refrigerant stagnation?
Does PMV correctly operate?
Check outdoor P.C. board.
Failure → Replace
* When replacing outdoor P.C.board, replace
the fuse.
[Current detection circuit trouble]
Wiring or connector
connection on P.C.board
normal?
YES
[Case thermostat operation]
Are CN609 connection and
case thermostat correct?
YES
When shorting the case
thermostat, can you perform
the cooling/heating operation?
YES
Is there gas leak?
Is there refrigerant shortage?
NO
Is service valve fully opened?
YES
Is PMV normal?
YES
Check and troubleshooting
NO
NO
NO
YES
NO
YES
NO
Correct connector connection or cabling.
Check outdoor P.C.board (MCC-1758).
NO
Case thermostat trouble → Replace
Check outdoor P.C. board.
NO
* When replacing outdoor P.C.board,
replace the fuse.
YES
NO
NO
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Correct power supply line.
Check wire connection
and correct it.
Compressor lock → Replace
Check TE, TS sensors
and PMV.
Failure → Replace
Failure → Replace
Correct connector.
Failure → Replace
Fault part repair.
Recharge refrigerant.
Open service valve fully.
Replace the PMV.
Check crushed or broken pipe.
Fault part repair