Toshiba RAV-SM304SDT-TR Service Manual page 105

Check Outdoor
code LED display
[H04] <Display 1> <Display 2>
[L10] <Display 1> <Display 2>
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Case thermostat operation]
Are CN609 connection and
case thermostat correct?
YES
Short each pins of CN609.
Can compressor operate?
YES
Is there gas leak?
Is there refrigerant shortage?
NO
Is service valve fully opened?
YES
Is PMV under correct conditions?
YES
[Unset model type]: Only when service P.C. board is used
Cut jumper line according
to the explanation sheet packaged
with the service P.C. board.
– 105 –
<In case of SP80>
NO
Correct connector.
Case thermostat error → Replace
NO
Check outdoor P.C. board.
Defect → Replace
YES
Repair defectives position.
Recharge refrigerant.
NO
Open service valve fully.
NO
Correct defective position.
Replace defective part.
Check crushed or broken pipe.
Defect → Correct and Replace