[14] G-Tr Short Circuit Protective Operation Alarm (Gate Transistor) - Toshiba HFCR407C Service Manual

Check code
[14]
G-Tr short circuit protective operation alarm
(Gate Transistor)
Is the power source voltage of the
outdoor unit normal?
Is the connection of the wiring
connector on the inverter PC
board normal?
Is AC 20A fuse working?
Is inverter compressor normal?
Is smoothing capacitor normal?
(2200μ F,400V x 2)
14
Check inverter PC board.
Troubleshooting
Diagnostic procedure for check code
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Operation cause
1. Outdoor unit power source error
2. Wiring error on inverter PC board
3. AC fuse disconnection
4. Inverter compressor error
5. Defective inverter PC board
Confirm the power source supply.
Replace inverter PC board and fuse.
Replace inverter PC board and
Check capacity decrease and appearance.
82
Modify connector of wiring.
compressor.
Replace inverter PC board.