(1) the fan does not rotate.
Exclusion method:
1. Not connected to the power supply-- turn on the power supply.
2. Motor does not work-check motor wiring or replace motor.
3. Damage to the head of the fan-repair or replacement of the fan.
4. there is a foreign body stuck in the fan-- remove the foreign body.
(2) increased noise.
Exclusion method:
1. Bearing dry lubrication-adding bearing grease.
2. Bearing damage-bearing replacement.
3. Impeller wear-replace the impeller or pump head.
4. the strong parts are loose or fall off-- tighten the firmware.
5. There is a foreign body in the fan-remove the foreign body or replace the pump head.
(3) the vibration increases.
Exclusion method:
1. Bearing damage-bearing replacement.
2. Impeller imbalance-removing foreign bodies in impellers or adjusting dynamic and static balance.
3. Spindle deformation-replacement of spindle or pump head.
4. the working state enters the turbulent earthquake area-- adjust the working state and avoid the turbulent earthquake area.
5. The filter screen at the inlet and outlet is blocked-- cleaning the filter screen.
Troubleshooting of blower.
(4) temperature rise.
Exclusion method:
1. The temperature of the air inlet is too high-- reduce the temperature of the air inlet.
2. Bearing dry lubrication-adding bearing grease.
3. Fan efficiency reduction-removal of blade dust or replacement of pump head.
4. Change the working status-- adjust the working status.
5. the increase of ambient temperature-- increase the ventilation and heat dissipation of the environment.
(5) pressure reduction.
Exclusion method:
1. The rotational speed of the pump head is reduced-- the power supply voltage is on the low side or the motor fault.
2. Increase the resistance of pipe network-- reduce the resistance of pipe network.
3. Change the working status-- adjust the working status.
4. the motor turns in the opposite direction-- the motor is rewired.
(6) flow reduction.
Exclusion method:
1. Plug the inlet and outlet gas filter-- clean the filter.
2. The rotational speed of the pump head is reduced-- the power supply voltage is on the low side or the motor fault.
3. Increase the resistance of pipe network-- reduce the resistance of pipe network.
4. Increase the working status-adjust the working status.
5. the motor turns in the opposite direction-- the motor is rewired.