Mitsubishi Electric PAC-YT53CRAU Manuel D'installation page 24

3 Remote controller check result
<When remote controller is normal>
<When remote controller is faulty>
When the problem is other than the checked remote controller
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4 Remote controller check reset
When the B [TEMP.
or longer, remote controller diagnosis is reset and the [HO] and run lamp flash and 30 seconds later
the remote controller returns to its state before diagnosis.
Since there is no problem at the remote controller, check for other causes.
(Error display 1) "NG" flashes → Remote controller send/receive circuit abnormal
Remote controller switching is necessary.
(Error display 2) "E3" "6833" "6832" flash → Cannot send
There is noise on the transmission line, or the indoor unit or another remote controller is
faulty. Check the transmission line and the other remote controllers.
(Error display 3) "ERC" and data error count are displayed → Data error generation
"Data error count" is the difference between the number of bits of remote controller send
data and the number of bits actually sent to the transmission line. In this case, the send
data was disturbed by the noise, etc. Check the transmission line.
When data error count is 02
Remote controller send data
Send data on transmission line
] button and D [
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
FAN] button are pressed simultaneously for 5 seconds
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