Maintenance of electrical applicances
22-60
(8) The inner and outer cycling servo motor
The fault inspection:
The fault state:
The intake valve has no change.
The inner and outer cycling servo motor is
not working normally.
Inspection means: Inspection circuit is cut off or
on.
Fig. 6.12 The inner and outer cycling servo motor
The inner and outer cycling servo motor is the actuator for selecting the air incoming direction of the
air conditioning system. The air conditioning system incoming air is divided into the inner and outer
cycling. The inner and outer selection is very important for removing the humidity inside the vehicle.
When the ambient temperature is lower than 0
o
C, the outside air in theory has no humidity, but due to
the relationship of the people, evaporation of steam exists inside the vehicle, the humidity comes from
inside the vehicle, at this time, the inner and outer cycling door is at outer cycle, it is favorable to the
humidity removal inside the vehicle. When air compressor is working in the summer, the inner cycle
shall be used.
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