Troubleshooting

The FusionCol8000-C generates abnormal sound.

Fans, pipes, or support are loose. Shock absorption bars between the unit and the support are lost.

Fix the component and add shock absorption bars.

An indoor fan fails to start.

Neither the main circuit breaker nor the indoor fan circuit breaker is switched on.

Check that the general switch and fan switch are ON.

An indoor fan is damaged.

Replace the fan.

The fan drive is damaged.

Replace the fan drive.

The northbound communication is abnormal.

The northbound communications cable is incorrectly connected.

Check that the northbound communications cable is connected to the northbound COM port on the main control module.

The T/H sensor cannot detect the humidity and temperature.

The settings on the display module are incorrect.

Ensure that the corresponding T/H sensor is enabled on the display module.

The temperature and humidity sensor is faulty.

If the T/H sensor still cannot detect the temperature and humidity after the sensor is enabled, replace the sensor in time.

The communications cable to the T/H module is incorrectly connected.

Check whether a northbound communications cable is incorrectly connected to the T/H sensor RS485/12V port on the front panel of the main control module.

Condensate water exists on the surfaces of the panel surface.

The operating environment of the FusionCol8000-C is extremely humid.

Enhance the airtightness of the equipment room.

The temperature threshold is set to a much smaller value.

Adjust the temperature and humidity thresholds.

The temperature control of the unit is abnormal.

The valve plug of the chilled water valve is reversely installed.

Check that the chilled water valve plug is correctly installed.

The chilled water valve is stuck.

Replace the chilled water valve.

The temperature and humidity thresholds are improper.

Adjust the temperature and humidity thresholds.

Alarms, such as water overflow and no refrigerant output, are generated.

Check the alarm causes and clear the alarm manually.

The chilled water valve is faulty or the cable connection is incorrect.

Replace the actuator or reconnect the cable.

Water leaks at the bottom of the unit.

The thermal insulation foam of the unit is damaged.

Check whether thermal insulation foam of the unit is securely installed and repair the damaged thermal insulation tube.

The drainpipe is blocked.

Ensure that the drainpipes are not over-bent.

The pipes leak.

Check the pipes and weld the pipe or fasten related bolts if the pipes leak.

The water inlet solenoid valve cannot be closed.

Replace the water inlet solenoid valve.

The drainage capacity of the unit decreases.

The drainpipe is over-bent or a water trap exists.

Check that drainpipes are free from bends and traps. Ensure that the pipes are not blocked.

The heating function fails.

The electric heater temperature switch is being protected.

Check whether the temperature switch is faulty. Replace the faulty switch.

An electric heater is burnt out.

Disconnect the power supply and check whether the electric heater is damaged by checking the electric heater resistance properties with an ohmmeter.

No water is supplied to the water inlet solenoid valve of the humidifier.

The upstream water supply is faulty or the water pressure is below the lower threshold.

Restore the water supply.

The water inlet solenoid valve is blocked or faulty.

Replace the water inlet solenoid valve.

The cable to the water inlet solenoid valve is incorrectly connected.

Reconnect the cable.

The humidification capacity is insufficient.

The wet film humidifier wears out and deteriorates.

Replace the wet film humidifier.

The air filter is blocked.

The air filter has been used for too long and become dusty.

Replace the air filter.

The differential pressure switch is faulty.

Replace the differential pressure switch.

The pressure difference cannot be controlled.

The micro differential pressure sensor is faulty.

Replace the micro differential pressure sensor.

The pressure tube is blocked or over-bent.

Replace the pressure tube or route the pressure tube again.

The position of the static pressure tube is improper.

Select another pressure point.

The damper does not operate.

The actuator cable is not properly connected.

Check and reconnect the cable to the motorized damper actuator.

The actuator is faulty and does not operate.

Replace the actuator.

The damper is stuck.

Replace the motorized damper.