Troubleshooting; Precautions When Handling The New Inverter - Toshiba RAS-07PKVP-E Service Manual

High Wall, Heat Pump Type
10

TROUBLESHOOTING

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
No. Troubleshooting Procedure
1 Precautions When Handling the New Inverter
Precautions When Inspecting the Control Section of
2
the Outdoor Unit
3 First Confirmation
4 Primary Judgment
5 Judgment by Flashing LED of Indoor Unit
6 Self-Diagnosis by Remote Controller (Check Code)

10-1.Precautions When Handling the New Inverter

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)
Separated potential
Fig.10-1-2 PAVP-E, PAVP-ND series (uninsulated type)
Shared potential
Page
73
74
75
75
76
77
CAUTION
Photocoupler
MCU
Driver
MCU
Driver
Amplifier
SAVP-E, SAVP-ND, GAVP-E, EAVP-E series (uninsulated type)
73
No. Troubleshooting Procedure
7 Judgment of Trouble by Symptom
Check Code 1C (Miswiring in Indoor/Outdoor Units)
8
and 1E
9 Inspection of the Air Purifier
10 Diagnose Trouble in Outdoor Unit
11 Inspection of the Main Parts
12 Inspection of the Outdoor Fan Motor
G-Tr
FET
(6IN1)
Photocoupler
IGBT
(6IN1 + Driver)
FET × 6
Amplifier
Service Manual
Page
80
85
86
87
89
93
Compressor
Fan motor
Hall device
Compressor
Fan motor