Commercial Air Conditioner Model: AU96NATAEA
AD96NAHAEA, AP96NACAEA
60
℃, the indoor fan motor will stop when the indoor coil temperature is no less than 28℃ and less
than 38℃, the indoor fan motor will run in low speed when the indoor coil temperature is over 38℃
or the compressor has run for over 4 minutes, the indoor fan motor will run at the set speed.
10. Diagnostic information (troubleshooting)
10.1 System failure
If the refrigerant in the system cannot flow fluently or the airflow circles more slowly, please check
due to the following procedures.
10.1.1 Cooling
solenoid valve failure
if the cooling load too large
if set temp. is proper
compressor failure
refrigerant flow
malfunction
bad cooling
lack of refrigerant
4-way valve failure
check the evaluation of
cooling load
change 4-way valve
recharge refrigerant
change the solenoid valve
change the set temp.
change compressor
bad ventilation
if fan is set as low speed set the fan as med speed
if air inlet filter is blocked clean the filter
if the refrigerant pipe between
I.D and O.D is insulated
insulate the thick pipe
and slim pipe separately
Figure 1
10.1.2 Hearting
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