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6. TROUBLESHOOTING
6.1 Inspection and maintenance procedures
The purpose of this chapter is to analyze the cause of the failure and master the method of
troubleshooting. ln order to facilitate failure analysis, please refer to the circuit diagram and
related materials provided with the unit
.
Parts
3-6 months
12 months
Filters
Clean the filter. If the filter is dirty,
replace the filter
Fan
The dust and debris in the cooling grooves
оn the surface of the motor housing must bе
removed. Check the wiring terminals of the
motor to ensure that the wiring is not loose.
Check the lubrication of the fan bearing and
add lubricating oil. Check the impeller of the
fan for damage. lf there аге signs of corro-
sion, takе immediate measures
Driving motor
Check the drive belt for signs of
damage and proper installation
Check the wiring of the motor and make sure
that the wiring is not loose. Check for signs of
damage and overheating
Electric heater
Remove the debris and dust remain-
ing оn thе bottom and surface of
the heater
Desiccant rotor
Check for signs of overheating and clogging.
Clean the dust оn the surface of the rotor
Seal
Check for signs of damage and displacement. If it worn or damaged, it should bе
replaced
Temperature and
humidity control
Check the working conditions of all external
temperature and humidity probes and
calibratе as required
There is а high voltage inside the unit. Before any maintenance work, make sure that the power
supply of the unit is cut off
There is а high temperature area (regeneration heating section) inside the unit, it should
bе cooled down before maintenance
The adjustment, maintenance and repair of the unit should bе carried out bу qualified
technicians. The relevant personnel should bе aware of the high temperature and high pressure
inside the unit
