Toshiba RAV-SP454ATP-E Service Manual page 71

Check Outdoor
code LED display
[P20] <Display 1> <Display 2>
SVM-12085_051-114.indd 71 SVM-12085_051-114.indd 71
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[High pressure protective operation]
Is service valve
fully opened?
Reset the power supply
and then perform test run
matching to the season.
Heating season
Heating operation
Is there any defect such as
loosening of nut in the outdoor fan?
Does the outdoor fan perform
which interfere heat exchange
Check overcharge of refrigerant, clogging of cycle,
broken pipe, abnormal overload, etc.
Defect → Correct defect.
NO
Does indoor fan
operate correctly?
Is there anything which interfere
heat exchange of indoor unit?
exchanger
rt-circuit
NO
Check overcharge of refrigerant, clogging of cycle,
broken pipe, abnormal overload, etc.
Defect → Correct defect.
– 71 –
FILE NO. SVM-12085
<In case of SP80>
NO
Open service valve fully.
Cooling season
Cooling operation
NO
Is resistance value
of TL sensor correct?
Replace TL sensor.
NO
Check outdoor fan.
Defect → Replace, retightening
abnormal operation?
NO
Check the same items as
[P22] error.
Is there anything
of outdoor unit?
exchanger
rt-circuit
NO
Eliminate interfering element.
NO
Are indoor fan motor
an connector correct?
Repair defect.
Are resistance values
NO
of indoor TC and TCJ
sensors normal?
Check indoor P.C. board.
Defect → Replace
Eliminate interfering element.
Replace
sensor.
12/06/12 11:15 AM 12/06/12 11:15 AM