Toyotomi TAN-A28FWIS Service Manual page 17

METHOD OF CHECK
DC excessive current detection and in case of irregular work of compressor
Flow Chart
check the damage of piping, excess gas
check the resistance of PCB(Power module) [see fig.5]
normal
check the voltage (230V) between
1 and 2 in terminal of TAG
normal
check the voltage of TAG PCB(main)
normal
accident of compressor
NO
accident of PCB(Power module)
YES
NO
YES
[see fig.6]
NO
take off the connectors
YES
the resistance of TAG PCB(main)
TROUBLESHOOTING GUIDE
check the power supply wiring
&
23
NO
normal
YES
accident of PCB(Power module)
– 16 –
24
[see fig.7]
accident of TAG PCB(main)