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Failure
Possible Reason
Resolution
Overload trip indicator on
Abnormal power supply
Supply power of 5% of rated voltage in accordance with
the nameplate.
Rated air flow exceeds.
Increase dryer equipment.
Refrigerant system is blocked.
Replace the dryer and capillary. Vacuum and re-fill
refrigerant.
Compressor malfunctions.
Replace a new compressor.
1. Can't start
2. Normal operation but bad dewatering effect
Failure
Possible Reason
Resolution
Abnormal water
draining system
Filter net is blocked.
Clean or replace in accordance with service instructions.
Control valve not open.
Open the control valve for water draining.
Dryer is placed unevenly.
Reinstall the dryer on even grounds.
Improper operation
or pipe design
Bypass pipes not closed
completely
Close tight valve gates of bypass pipes.
Wrong installation of air inlet and
outlet
Reinstall the pipes of air inlet and outlet.
Rated environment temperature
exceeds.
When ambient temperature is over 40
, relocate the
equipment or add ventilation facilities.
Compressed air does not go
through the dryer.
Check the installed pipes.
Rated requirements
not met
Rated air flow exceeds.
Increase dryer equipment.
3. Extreme pressure drop
Failure
Possible Reason
Resolution
Improper operation
Valve gates of inlet and outlet
not open completely
Open valve gate.
Filter in the pipe is blocked.
Replace the filter element.
Rated requirements
not met
Diameter of air pipes too small
Increase the diameter and re-pipe.
Bad design of air
pipes
Rated air flow exceeds.
Increase dryer equipment.
Joint where air pipes connect leaks.
4. After-sale service
When the dryer malfunctions, comply with the failure, possible reason and resolution in the
above table. Do not conduct maintenance or repair if the cause of the problem is not confirmed.
Contact the manufacturer from whom the dryer was purchased and inform them the following
items:
Part To Be Purchased for Replacement
1. Model number and manufacturing number of the
product
2. Symptoms and possible reasons of failure
3. Address, phone number and contact person
1. Model number and manufacturing number of the
product
2. Name and quantity of the required part
3. Address, phone number and contact person
Notification Items for Dryer Failure
Reinstall at places where leak occurs.
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