Part no. :
Delta model no. : HEC1200PB
Page 20
Fault Analysis and Processing
Fault State
Analysis of the Reasons
Solutions
Power on, and the cabinet
temperature is too high
but the air conditioner is
not working
1. Power failure or no power.
2. The target temperature is higher
than inside temperature.
3. System failure.
1. Check the power supply and the electric
circuit.
2. Re-set the target temperature according
to the system requirement.
3. Please contact the service department.
The air conditioner is
running but the cabinet
temperature is still high,
no obvious cooling effect.
1. The air conditioner capacity is
not match the load of the system.
2. The ambient temperature is too
high.
3. Low efficiency of the condenser.
4. Other system failure
1. Check the heating load of the system.
2. Ensure the air conditioner operates in
correct temperature range.
3. Clean the condenser.
4. Please contact the service department.
The air conditioner stop
operating, and there is no
alarm signal.
1. The inside temperature is lower
than the target temperature.
2. Other system failure.
1. Re-set the target temperature according
to the system requirement.
2. Please contact the service department.
