Super Multi System - Toshiba
Super Multi System - Toshiba
Super Multi System - Toshiba
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Check code Operation cause<br />
[21] 1. Inverter high pressure SW error.<br />
Inverter high pressure SW system alarm 2. Inverter IOL operation.<br />
3. Service valve closed.<br />
4. Outdoor fan, capacitor error.<br />
5. Indoor/Outdoor PMV blockage.<br />
6. Outdoor heat exchanger blockage.<br />
7. SV2 circuit blockage.<br />
8. Indoor – Outdoor communication error.<br />
9. Pd sensor error.<br />
10.Refrigerant overcharge.<br />
46<br />
Does the inverter high pressure<br />
switch operate?<br />
�<br />
Are the inverter high pressure<br />
switch parts normal?<br />
�<br />
Is service valve fully open?<br />
�<br />
Does the cooling outdoor fan<br />
normally operate?<br />
�<br />
Is there a problem with the<br />
outdoor unit heat exchanger?<br />
(1) Blockage of heat exchanger<br />
(2) Short circuit<br />
Il circuito di bypass della � SV2 è normale?<br />
Is SV2 bypass circuit normal?<br />
�<br />
A<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
No<br />
Yes<br />
�<br />
Check parts.<br />
If defective, replace.<br />
Open service valve fully.<br />
No<br />
No<br />
No<br />
No<br />
�<br />
Yes<br />
�<br />
Remove cause.<br />
No<br />
Troubleshooting<br />
Diagnostic procedure for check code<br />
�<br />
Repair SV2 bypass circuit.<br />
�<br />
Are the connection, capacitor<br />
and fan motor normal?<br />
�<br />
Are the high pressure sensor<br />
characteristics normal?<br />
�<br />
Yes<br />
Yes<br />
�<br />
See judgment flow of IPDU IOL<br />
operation circuit “E5”.<br />
�<br />
Check and modify wiring<br />
No<br />
�<br />
Repair defective position.<br />
No<br />
No<br />
�<br />
No<br />
Replace high pressure sensor.<br />
Check outdoor IPDU PC board.<br />
If defective, replace board.<br />
(Coil error, disconnection of wiring, etc.)<br />
�<br />
Is the inverter IOL<br />
circuit normal?<br />
�<br />
Is circuit wiring normal?<br />
�<br />
Yes<br />
Yes
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