Toshiba RAV-SP454ATP-E Service Manual page 69

Check Outdoor
code LED display
[P07] <Display 1> <Display 2>
[P15] <Display 1> <Display 2>
SVM-12085_051-114.indd 69 SVM-12085_051-114.indd 69
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Heat sink overheat error]
Are the power devices on
P.C. board screwed without looseness?
(Rear sides of Q201, Q300, Q650, DB01, DB02)
Are radiation grease properly applied?
(Q201, Q650, DB01, DB02)
YES
Does something block the
ventilation around the heat sink?
Does something block air flow
from the fan?
NO
Check outdoor P.C. board.
Defect → Replace
[Gas leak detection]
Is there gas leak?
Is there refrigerant shortage?
NO
Is PMV under correct conditions?
YES
Is service valve fully opened?
YES
Is there crushed pipe?
NO
Check temp. sensor.
TD sensor CN603
TS sensor CN600
OK
Check outdoor P.C. board.
Defect → Replace
– 69 –
FILE NO. SVM-12085
<In case of SP80>
NO
Apply radiation grease to objective parts.
Retightening of screws.
(Be sure not to forget to attach insulating sheet
between heat sink and Q300.)
YES
Remove blocking matter.
Correct short-circuit.
YES
Repair defective part.
Recharge refrigerant.
NO
Correct defective part.
Replace defective part.
NO
Open service valve fully.
YES
Correct and replace piping.
Error
Correct connector.
Sensor error → Replace
12/06/12 11:15 AM 12/06/12 11:15 AM