Super Multi System - Toshiba
Super Multi System - Toshiba
Super Multi System - Toshiba
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Troubleshooting<br />
Diagnostic procedure for check code<br />
Check code Operation cause<br />
[b5] 1. External device error.<br />
External input display fault 2. Indoor PC board error.<br />
[b6]<br />
External interlock display fault<br />
Fault on CN17 - fault on external device<br />
(accessory)<br />
Is the external device connected<br />
to connector CN17 ?<br />
�<br />
Is the external device<br />
operating normally ?<br />
�<br />
Yes<br />
Yes<br />
Check cause of the operation.<br />
No<br />
No<br />
�<br />
�<br />
Check indoor PC board.<br />
If defective, replace.<br />
Check external device.<br />
If defective, replace.<br />
Check code Operation cause<br />
[d3] Error of temp. sensor incorporated in IGBT<br />
TH sensor alarm<br />
Refer to outdoor unit<br />
(Inverter Gate Bi-Polar Transistor)<br />
There is an error with the temp. sensor incorporated in IGBT. Check connectors CN07 on IPDU PC board<br />
and CN600 on interface PC board. If there is no problem, replace IPDU PC board.<br />
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