Mitsubishi Electric Mr.SLIM PKH-1.6FKA Technical & Service Manual page 64

8.MR. SLIM/LOSSNAY INTERLOCK OPERATION
<Symptoms that are not malfunctions>
If any of the following symptoms occur, they are not malfunctions.
LOSSNAY control switch does not work.
LOSSNAY air speed can not be controlled in interlock opera-
tion.
For LOSSNAY, troubleshooting refer to the LOSSNAY technical & service manual.
Symptom
LOSSNAY control switch can not work during interlock opera-
tion.
LOSSNAY control switch is effective only while Mr. SLIM is not
operating.
LOSSNAY fan speed is fixed to HIGH during interlock opera-
tion.
LOSSNAY fan speed LOW/HIGH can be switched only during
LOSSNAY individual operation with the LOSSNAY control
switch.
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Cause