Argo Ulisse 10 AUR101CL Technical Data & Service Manual page 27

F
AIR CONDITIONER OPERATES, BUT ABNORMALITIES ARE OBSERVED (HEAT PUMP MODEL)
1) Operation does not switch from heat to cool (or cool to heat)
Remote control unit may be defective.
Measure resistance of solenoid coil
winding (20 S - 4-way valve)
(2) Check "PUSH BUTTON" in indoor unit on monitor panel
•
•
Push the button switch under the
Push the button switch under the
indoor unit pannel.
indoor unit pannel.
(3) Check remote control unit.
Try to run using another remote control
unit.
YES
First remote control unit is defective.
Check for residue duildup on transmitter
of remote control unit.
Check for residue buildup on remote
control receiver on front of indoor unit.
Receiver Ass'y may be defective.
The indoor unit
and outdoor unit
doesn't runs
NO
NO
27
Indoor PCB Ass'y
is defective
Clean transmitter.
Clean receiver.