Page 49
Low Ambient Temperature Warning
The ambient temperature is too low.
Test the operation of the ambient
temperature sensor and re-
connect/replace if necessary.
Electric Overheat Protection
The compressor is overloaded.
Check the operation of the
refrigeration circuit in terms of
gas pressure and charge.
There is a communication error between the
controller and the unit.
Check the wiring and
connections between the
controller and the unit.
The high pressure switch in the refrigeration
circuit has been tripped.
Check the operation of the high
pressure switch and refrigeration
circuit in terms of gas pressure.
The low pressure switch in the refrigeration
circuit has been tripped.
Check the operation of the low
pressure switch and refrigeration
circuit in terms of gas pressure.
Primary Anti-freezing Protection
The ambient temperature is low.
Test the operation of the ambient
temperature sensor and re-
connect/replace if necessary.
Secondary Anti-freezing Protection
The ambient temperature is low.
Test the operation of the ambient
temperature sensor and re-
connect/replace if necessary.
There is not enough flow in the heating circuit.
Check the plumbing circuit for
blockages or air, valves are open
and the operation of the
circulating pump.
The compressor is overloaded.
Check the operation of the
refrigeration circuit in terms of
gas pressure and charge.
There is not enough flow in the heating circuit.
Check the plumbing circuit,
valves and operation of the
circulating pump.
There is no connection between the fan module
and motor.
The fan motor is in locked rotor state.
Check the connection between
the fan module and motor.
Replace the fan motor.
DC Fan Motor 2 Error (AS03 models only)
There is no connection between the fan module
and motor.
The fan motor is in locked rotor state.
Check the connection between
the fan module and motor.
Replace the fan motor.
To Next Page
Loading...
Need help?
General
