High Wall, Heat Pump Type
Service Manual
73
Toshiba
10TROUBLESHOOTING
The pulse motor circuits are mounted to both indoor and outdoor units.
Therefore, diagnose troubles according to the trouble diagnosis procedure as described below.
(Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.)
Table 10-1
10-1.Precautions When Handling the New Inverter
CAUTION
HIGH VOLTAGE
The high voltage circuit is incorporated.
Be careful to do the check service, as the electric shock may be caused in case of touching parts on the P.C. board by
hand.
The control circuitry has an uninsulated construction.
Fig.10-1-1 JAVP-E series (insulated type)
Fig.10-1-2 PAVP-E, PAVP-ND series (uninsulated type)
No. Troubleshooting Procedure Page No. Troubleshooting Procedure Page
1 Precautions When Handling the New Inverter 73 7 Judgment of Trouble by Symptom 80
2
Precautions When Inspecting the Control Section of
the Outdoor Unit
74 8
Check Code 1C (Miswiring in Indoor/Outdoor Units)
and 1E
85
3 First Confirmation 75 9 Inspection of the Air Purifier 86
4 Primary Judgment 75 10 Diagnose Trouble in Outdoor Unit 87
5 Judgment by Flashing LED of Indoor Unit 76 11 Inspection of the Main Parts 89
6 Self-Diagnosis by Remote Controller (Check Code) 77 12 Inspection of the Outdoor Fan Motor 93
G-Tr
FET
(6IN1)
MCU
Compressor
Fan motor
Separated potential
Photocoupler
Photocoupler
Hall device
IGBT
(6IN1 + Driver)
FET × 6
MCU
Compresso
Fan motor
SAVP-E, SAVP-ND, GAVP-E, EAVP-E series (uninsulated type)
Shared potential
Driver
Driver
Amplifier
Amplifier
+00A08-010_01EN_SVM_HighWallHeatPump.book Page 73 Wednesday, March 4, 2009 11:22 AM
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