Midea AC Fan Coil Unit
56
Non-Unit Related Faults:
The following fault symptoms are not caused by the unit itself:
1) Fault symptom: Fan speed is not consistent with the setting.
The fan doesn’t respond to the controller. In cooling mode, when the pipe water temperature is outside the
allowable range of room temperature, the fan speed will be maintained at a low level to avoid direct exposure to
hot air. In heating mode, when the pipe water temperature reaches a certain low level, the fan speed will also be
maintained at a low level to avoid direct exposure to cold air.
2) Fault symptom: Fan direction is not consistent with the setting.
The fan direction is inconsistent with the direction indicated on the user interface. Swing is a customized function.
If the customer customizes this function and the fan direction does not correspond to the set direction, this is
because the unit is controlled.
3) Fault symptom: white fog from a certain unit.
This may result from high humidity during cooling mode. If the interior pollution of the fan coil unit is severe, the
indoor temperature distribution may be uneven. At this time, you need to clean the inside of the unit. Ask the
dealer for information on how to clean the unit. This operation must be carried out by qualified maintenance
personnel.
4) Fault symptom: dust and dirt in the unit.
It may happen after the unit is used again after being left idle for a long period. This is because there is dust inside
the unit.
5) Fault symptom: odour from unit.
The unit will absorb the odours of rooms, furniture, cigarettes and others, and then disperse the odours again.
Odour might occur after small animals enter the unit.
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