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4. Service procedures<br />
6) Symptom: LCD on the remote controller is displaying “CHECK E06”. (Unusual<br />
communication between the indoor and outdoor units)<br />
Start<br />
Is there a cut line or contact<br />
defect between an indoor and<br />
outdoor unit’s control line?<br />
* See the section of INSTALLATION INSTRUCTION concerning with flexible<br />
combination system.<br />
7) Symptom: LCD on the remote controller is displaying “CHECK E08”. (Duplicate<br />
indoor unit address setting)<br />
Start<br />
No<br />
Influenced by external noise<br />
Start<br />
Is the setting for the non-volatile<br />
memory IC on the indoor unit PCB<br />
inappropriate?<br />
(Are there two units with the same<br />
address?)<br />
No<br />
Influenced by external noise<br />
Are there two remote controllers<br />
(master-slave) installed with both<br />
remote controllers set as masters?<br />
No<br />
Replace the remote controller.<br />
Yes<br />
Yes<br />
8) Symptom: LCD on the remote controller is displaying “CHECK E09”. (Duplicate<br />
setting of RCU address switch of remote controllers)<br />
Yes<br />
IV - 13<br />
Correct wiring.<br />
Correct the setting.<br />
Correct the setting.<br />
* See the section of INSTALLATION INSTRUCTION concerning with controlling<br />
remote controller switches when there are two remote controllers.<br />
1903_M_I<br />
1904_M_I<br />
* See the section of INSTALLATION INSTRUCTION concerning with flexible<br />
combination system.<br />
0339_M_I<br />
*<br />
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2<br />
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