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

82
Troubleshooting
Diagnostic procedure for check code
Check code Operation cause
[14] 1. Outdoor unit power source error
G-Tr short circuit protective operation alarm 2. Wiring error on inverter PC board
(Gate Transistor) 3. AC fuse disconnection
4. Inverter compressor error
5. Defective inverter PC board
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)
Check inverter PC board.
Confirm the power source supply.
Modify connector of wiring.
Replace inverter PC board and fuse.
Replace inverter PC board and
compressor.
Check capacity decrease and appearance.
Replace inverter PC board.










Yes
No
Yes
Yes
Yes
Yes
No
No
No
No
14