UNTES URTP055 - Page 75

75
 Check the inverter user panel and if there is any error, refer to inverter instruction manual.
 Check cable connections.
 Check the power motor. (mechanic and electric connections)
 Check the network voltage.
Room Sensor Error
 Check sensor cable connections.
 Check cable connections between room control unit and control panel.
 Check temperature sensor on the room unit.
Blow Sensor Error
 Check sensor cable connections.
External Air Sensor Error
 Check sensor cable connections.
Humidity Sensor Error
 Check sensor cable connections.
 Check sensor feeder voltage.
Freeze Error
 Check warm water inlet and outlet temperatures belonging to the unit.
 Check the dirt holder.
 Check water pressure of the installation.
 Evacuate air in the installation.
 Check the three-way valve motor.
 Check the three-way valve.
 Check inlet and outlet valves.
 Check cable connections of freeze thermostat, check setting values.
Front Air Filter Error
 Check the front air filter.
Compressor 1 Low Pressure Error
 Check gas pressures in this stage.
 Check low pressure safety element.
 Check exp. valve element.
 Check filter within gas circuit.
 Check valve positions on gas installation.
 Check electric cable connections.
 Check the set value of safety element.
 Check cleanness of air filter within the device.
 Check cleanness of evaporator surfaces.