3 – 12
3 When all rooms are not heated
Does the air get cooler in the
cooling operation mode?
Check the four-way valve.
Has the cycle been switched?
Is AC230V applied between
the connector(CN4) 1 and 3
of the 4-way valve ?
Replace the 4-way valve.Pressure check
The heating cycle is normal.
Refer to 1 All rooms are
not cooled.
Press the ON switch on the
remote control to run the air
conditioner.
Set the temperature to 32
in the heating mode and
start operation.
Is the outdoor compressor
running?
Ye s
Ye s
To
No
No
Ye s
Ye s
No
No
A
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