The Following Occurrences Are Not Problems Or Errors - Mitsubishi Electric PUH-P10MYA Installation Manual

10.3. The following occurrences are not problems or errors

Problem
The auto vane moves on its own.
The fan setting changes during heating.
The fan stops during heating.
Although operation has stopped, the fan does
not stop.
When the switch is turned ON, the fan does
not begin to operate.
The outdoor unit fan turns in reverse or stops,
and an unusual sound is heard.
14
Remote controller display
As a result of the auto vane control operations, during cooling, when downward blowing
has been used, after 1 hour has passed horizontal blowing sometimes occurs automati-
Ordinary display
cally. During defrosting in heating, hot adjustment, and thermostat OFF modes, hori-
zontal blowing occurs automatically.
During thermostat OFF mode, light air or low air operation will take place.
During thermostat ON mode, light air or low air will switch automatically to set notch on
Ordinary display
the basis of time or piping temperature.
Defrosting display
During defrosting, the fan will stop.
When the supplementary electric heater is ON, the fan will run for 1 minute after opera-
Off
tion stops in order to expel excess hot air (during heating only).
After the switch is turned to ON or until the piping temperature reaches 35°C, there will
Heating preparations
be 5 minutes of light air operation. After that there will be 2 minutes of low air operation,
underway
then set notch will begin (hot adjustment control).
There is a risk of the power to the outdoor unit being connected in reverse phase. Be
Ordinary display
sure to check that the phase is correct.
Cause