Protection Device And Troubleshooting
1. Protection Device for control substrate
Fuse (250V/3A)
When over-high voltage is input or the part on the substrate
breaks down, this fuse will be melted to prevent elements at
rear like the compressor from being damaged.
2. Protection Device for Fan Motor
Fuse (250V/3A)
When the cooling fan motor breaks down to cause excessive
current, this fuse will be melted to avoid electric hazards.
3. Protection Device for Freezing System
Temperature Sensor
When the freezing system is lack of maintenance or the refrigerant
leaks, backflow temperature will become too high and cause the
compressor to overheat. Thus, the compressor can be stopped
opportunely by the temperature sensor.
4. Protection Device for Compressor
Current Sensor
The current sensor can detect operation status of the compressor
when the dryer is running. In case of over-current, the compressor
will be stopped at once.
Protection Device
Troubleshooting
1. Can't start
Failure
Possible Reason
Resolution
Power switch trips or breaks down. Check power switch and make sure if voltage is normal.
Abnormal power supply
causes the fuse of the control
substrate to melt.
Supply power of 5% of rated voltage in accordance
with the nameplate and replace the fuse.
Control substrate breaks down.
Replace a new one.
Overload trip
indicator on
Condenser is blocked.
Remove dust or impurities out of the surface of the fin in
compliance with service instructions.
Cooling fan breaks down to
cause the fuse of the fan to melt.
Replace a fan motor and a fuse.
Refrigerant leaks.
Vacuum after repair and re-fill refrigerant.
Rated environment temperature
exceeds.
When ambient temperature is over 40
, relocate the
equipment or add ventilation facilities.
No display
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Summary of Contents for AD-005
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