Read Sharp AE-XM24CR (serv.man11) Service Manual online
50
AY-XM7/9/12CR
AY-XPM7/9/12CR
AE-XM18/24CR
AY-XPM7/9/12CR
AE-XM18/24CR
3 When all rooms are not heated
Does the air get cooler in the
cooling operation mode?
cooling operation mode?
Check the four-way valve.
Has the cycle been switched?
Has the cycle been switched?
Replace the outdoor
relay PWB.
relay PWB.
Is AC230V applied between
the connector(CN4) 1 and 3
of the 4-way valve ?
the connector(CN4) 1 and 3
of the 4-way valve ?
Replace the four-way valve.
Pressure check
The heating cycle is normal.
Refer to (1) All rooms are
not cooled.
not cooled.
Press the ON switch on the
remote control to run the air
conditioner.
Set the temperature to 32˚C
in the heating mode and
start operation.
remote control to run the air
conditioner.
Set the temperature to 32˚C
in the heating mode and
start operation.
Is the outdoor compressor
running?
running?
Yes
Yes
Yes
Yes
No
No
No
