Mitsubishi Electric FDT125VNVF Technical Manual page 384

Error code
E18
Remote controller:
1. Applicable model
All models
2. Error detection method
IU address has been set using
the "Master IU address set"
function of remote controller.
3. Condition of Error displayed
Same as above
4. Presumable cause
Same as above
Note:
LED Green Red
Keeps flashing 1 times flash
Indoor
Keeps flashing Stays Off
Outdoor
5. Troubleshooting
Diagnosis
E18 occurs
Is "Master IU
address set" function of remote
controller used?
383
-
Content
Address setting error of
master and slave indoor units
YES
-
'12 • PAC-T-174
Countermeasure
Return address No. to
"IU ..." using [ ▲ ] or
[ ▼ ] button.