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Range hood motor common faults and solutions

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Range hood motor common faults and solutions

  • Categories:Industry News
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  • Time of issue:2021-03-09
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(Summary description)The most important part of the range hood is the motor of the range hood. Whether the motor is good or not, whether it can run normally, directly determines the quality of the range hood and the effect of the range hood. However, the Range hood motor will also malfunction after a period of use. How can we solve this? Here is the following introduction for you.

Range hood motor common faults and solutions

(Summary description)The most important part of the range hood is the motor of the range hood. Whether the motor is good or not, whether it can run normally, directly determines the quality of the range hood and the effect of the range hood. However, the Range hood motor will also malfunction after a period of use. How can we solve this? Here is the following introduction for you.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2021-03-09
  • Views:0
Information

The most important part of the range hood is the motor of the range hood. Whether the motor is good or not, whether it can run normally, directly determines the quality of the range hood and the effect of the range hood. However, the Range hood motor will also malfunction after a period of use. How can we solve this? Here is the following introduction for you.

Range hood motor
Range hood motor-can't start after power on
Cause analysis and treatment: the power line is open or the joint is unsoldered, carefully find the open or unsoldered point, and re-solder; the on-off switch is open or the contact is poor, check whether the circuit breaker is well welded, if the contact is poor Replace with a new product; reduce the capacity of the motor starting capacitor or short-circuit or open circuit, which requires replacing the capacitor of the same specification to make the motor run; the variable speed coil is open or short-circuited, the variable speed coil should be repaired or replaced with a new product; the bearing is damaged and the shaft is stuck and must be replaced Bearing; the stator winding is short-circuited or the connecting wire is open, repair the stator winding or replace it with a new product.
Range hood motor- abnormal sound or loud noise during operation
Reason analysis and treatment: improper assembly makes the fan blade loose and touch the air deflector frame to produce abnormal sound, re-assemble and tighten the fan blade tightening nails correctly; the motor bearing is severely worn, and the bearing of the same model must be replaced; the motor is poorly assembled, and the motor stator and rotor are corrected Make the gap uniform. If there is movement in the axial direction, appropriate washers should be added; the deformation of the blade is unbalanced, correct the blade, and adjust the dynamic and static balance of the blade; the design of the air outlet duct is unreasonable. The air outlet pipe should be bent as little as possible, and the bend should be round and round.
Range hood motor-excessive vibration of range hood
Reason analysis and treatment: the fixing is not solid or the installation is not good, add rubber pad or foam plastic, and the fixing is strong; there is foreign matter on the blade, and the internal scale is too thick. Remove foreign matter and internal dirt on the blade; the main shaft and the fan blade sleeve are eccentric, readjust the main shaft and the fan blade sleeve to make it concentric; the motor bearing is worn or the bearing hole is too large, replace the new bearing of the same specification; the motor winding is partially short-circuited Or open circuit, replace winding or motor.
Range hood motor-oil leakage
Reason analysis and treatment: improper installation, insufficient elevation angle, re-install to maintain a certain elevation angle, so that the sucked oil naturally flows down the oil cup; or add a filter at the air outlet and have a certain angle to make the oil drop on the surface Can't drip under the action of tension; the sealing strip fails for a long time, add rubber or foam plastic strips to the seal to compress the parts to improve the sealing level; if cleaning is not carried out regularly, the grease in the oil cup should be removed frequently and the filters should be cleaned. Nets and pipes to avoid spilling smoke and grease.
Range hood motor-poor smoke effect
Reason analysis and treatment: the installation point is too high from the stove, reduce the installation point appropriately; the exhaust pipe is too long or the direction of the air outlet is not properly selected, appropriately shorten the exhaust pipe, and reselect the direction of the air outlet; the sealing strip is invalid and leaking, replace the sealing strip Make it tightly sealed; if the internal circulation activated carbon fails, replace the activated carbon; if the pressure difference between indoor and outdoor is too large, open doors and windows appropriately to reduce the pressure difference between indoor and outdoor; if the voltage is too low, install a voltage stabilizer if necessary; Blocked by oil stains, clean the oil stains.
Range hood motor-key switch malfunction
Reason analysis and treatment: If the key switch can be locked by pressing the key switch, and the motor cannot be started by pressing each gear, the public connection is disconnected, and the motor cannot be operated when one gear is pressed, and the other gear is normal. It indicates that only the contact of the gear that is out of control is damaged or the connection of the sub-range is broken, and the contact and connection should be repaired; if the key is pressed, the motor can run, and the key cannot be locked after being released, mainly due to the deformation and conduction of the conductive spring in the switch If the switch fails to make contact, or the switch spring is displaced or falls off, adjust the spring or replace with a new switch; if the key switch is pressed down, both gears are locked, indicating that the interlock spring is squeezed and deformed and displaced. The interlock spring should be adjusted and repaired .
The above introductions are the common faults and solutions of Range hood motor. If there is a problem with the Range hood motor at home, you can refer to the above introduction to solve it by yourself.

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