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Main<br />
remote<br />
controller<br />
E31<br />
Check code<br />
Outdoor 7-segment display<br />
Check<br />
code<br />
E31<br />
Sub-code<br />
Symbol O<br />
signifies site of<br />
IPDU error.<br />
AI-NET central<br />
control<br />
remote<br />
controller<br />
CF<br />
F01 – – 0F<br />
F02 – – 0d<br />
F03 – – 93<br />
F04 F04 – 19<br />
F05 F05 – A1<br />
F06<br />
F06<br />
01<br />
02<br />
03<br />
04<br />
05<br />
06<br />
07<br />
08<br />
09<br />
0A<br />
0B<br />
0C<br />
0D<br />
0E<br />
0F<br />
A3-IPDU Fan<br />
1 2 3 IPDU<br />
O<br />
O<br />
O O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
O O<br />
O O<br />
O<br />
O<br />
O<br />
O<br />
O O<br />
O O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
01:<br />
TE1 sensor error<br />
02:<br />
TE2 sensor error 18<br />
F07 F07 – 18<br />
Location<br />
of<br />
detection<br />
I/F<br />
Indoor<br />
unit<br />
Indoor<br />
unit<br />
Indoor<br />
unit<br />
I/F<br />
I/F<br />
I/F<br />
Description<br />
IPDU<br />
communication<br />
error<br />
Indoor TCJ<br />
sensor error<br />
Indoor TC2<br />
sensor error<br />
Indoor TC1<br />
sensor error<br />
TD1 sensor<br />
error<br />
TD2 sensor<br />
error<br />
TE1/TE2<br />
sensor error<br />
System status<br />
All stop<br />
Stop of<br />
corresponding<br />
unit<br />
Stop of<br />
corresponding<br />
unit<br />
Stop of<br />
corresponding<br />
unit<br />
All stop<br />
All stop<br />
All stop<br />
Error detection<br />
condition(s)<br />
Communication is disrupted<br />
between IPDUs (P.C.<br />
boards) in inverter box.<br />
Sensor resistance is infinity<br />
or zero (open/short circuit).<br />
Sensor resistance is infinity<br />
or zero (open/short circuit).<br />
Sensor resistance is infinity<br />
or zero (open/short circuit).<br />
Sensor resistance is infinity<br />
or zero (open/short circuit).<br />
Sensor resistance is infinity<br />
or zero (open/short circuit).<br />
Sensor resistance is infinity<br />
or zero (open/short circuit).<br />
I/F TL sensor error All stop Sensor resistance is infinity<br />
or zero (open/short circuit).<br />
Check items (locations)<br />
• Check wiring and<br />
connectors involved in<br />
communication between<br />
IPDU-I/F P.C. board for<br />
bad contact or broken wire.<br />
• Check for defect in outdoor<br />
P.C. board (I/F, A3-IPDU<br />
or Fan IPDU).<br />
• Check for external noise.<br />
• Check connection of TCJ<br />
sensor connector and<br />
wiring.<br />
• Check resistance<br />
characteristics of TCJ<br />
sensor.<br />
• Check for defect in indoor<br />
P.C. board.<br />
• Check connection of TC2<br />
sensor connector and<br />
wiring.<br />
• Check resistance<br />
characteristics of TC2<br />
sensor.<br />
• Check for defect in indoor<br />
P.C. board.<br />
• Check connection of TC1<br />
sensor connector and<br />
wiring.<br />
• Check resistance<br />
characteristics of TC1<br />
sensor.<br />
• Check for defect in indoor<br />
P.C. board.<br />
• Check connection of TD1<br />
sensor connector.<br />
• Check resistance<br />
characteristics of TD1<br />
sensor.<br />
• Check for defect in outdoor<br />
P.C. board (I/F).<br />
• Check connection of TD2<br />
sensor connector.<br />
• Check resistance<br />
characteristics of TD2<br />
sensor.<br />
• Check for defect in outdoor<br />
P.C. board (I/F).<br />
• Check connection of TE1/<br />
TE2 sensor connectors.<br />
• Check resistance<br />
characteristics of TE1/TE2<br />
sensors.<br />
• Check for defect in outdoor<br />
P.C. board (I/F).<br />
• Check connection of TL<br />
sensor connector.<br />
• Check resistance<br />
characteristics of TL<br />
sensor.<br />
• Check for defect in outdoor<br />
P.C. board (I/F).<br />
181
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