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the reasons and solutions for the commercial oil fume purifier are not possible to rotate are as follows:
1. power failure: there may be problems with the power cord condition, such as short circuit or aging of the wire. at this time, you need to check the condition of the power cord and circuit fuse to ensure that the plug and socket are connected securely. if there is wear or damage, it should be replaced in time.
2. insulator damage: long-term work may cause the insulator to be unclean, which will cause the housing current or electric field to be shorted and the equipment will not work properly. therefore, the insulator needs to be cleaned regularly.
3. electric field failure: electric field is an important part of the oil fume purifier. long-term operation may lead to accumulation of grease, reduced purification efficiency, and may even be damaged due to corrosion.
4. filter clogging: filters that have been used for a long time may be adhered and contaminated by oil smoke, resulting in clogging. at this time, you need to check and clean the filter. the specific operation is to turn off the power supply, remove the filter screen at the front end of the purifier, clean the filter screen with warm water and neutral detergent, thoroughly remove oil stains and ash, and then apply a special oil detergent to remove the oil and dust. . in addition, the air duct and fan inside the purifier should be cleaned to ensure smooth ventilation.
5. fan failure: the fan may not work properly due to the burnout of the motor or the damage to the air blades. at this time, you need to check the status of the fan and motor. if necessary, contact a professional maintenance personnel for repair or replacement.
6. current fault: if the fan is operating normally, but the fume purifier cannot operate normally, it may be that the power cord is damaged. the power cord should be checked and replaced in a timely manner.
please note that to ensure safety and avoid further damage to the equipment, please perform the above operations under the guidance of a professional.
fume purifier display E2 the possible reasons are as follows:
you can also refer to the instructions below, or call the after-sales service number to consult a professional maintenance staff.
many people like to cook by themselves, but in fact, when we are cooking, there will be a lot of smoke, oil and harmful gases in the kitchen. if these things are inhaled for a long time, they are actually harmful to human health. in the past, before people solved the problem of food and clothing, oil fume purifiers seemed to be unnecessary. however, in today's era, the existence of oil fume purifiers is very necessary. they can remove oil fume well and keep air circulation. so, sometimes there will always be some problems with the oil fume purifier. what should i do? today, the editor will tell you about the common fault repair methods for catering oil fume purifiers.
1.when the power is turned on, only one motor rotates, the other motor does not rotate, and makes a "buzzing" sound.
(1)the motor is faulty or the impeller is stuck.
(2)the motor-related parts are stuck.
(3)the starter capacitor is damaged.
check the key switch SB: and SB,、 electric motor M。 and M: and start the capacitor and discover the motor M: the start capacitor of the fume purifier is disconnected, causing the motor to M: cannot start. replace the motor M: start capacitor, troubleshoot.
2.press the automatic alarm and exhaust switch, and the exhaust fan starts immediately, but the alarm also alarms.
the main reason for this failure is the failure of the delay circuit component. check separately R;、A。、R:、C2 capacitors are found in other related components (j the circuit is disconnected, causing the delay circuit to work abnormally and troubleshoot after replacement.
3.press the automatic key and the green light-emitting tube does not light up. the power circuit of the air-sensitive device is faulty. after power off, check the transformer, rectifier diode, integrated circuit, transistor, capacitor and c。、 resistance R。。 filter capacitors are found in other components C, it is broken down, causing the power supply circuit to work abnormally.
4.when encountering harmful gases, the detection fails
the gas sensitive tube fails or the sensitivity decreases, and the regulation circuit is poorly operated. the gas sensitive tube is N the resistance of a semiconductor component decreases when it comes into contact with a combustible gas. different gas concentrations also show different resistances of gas sensitive tubes. the higher the gas concentration, the smaller the resistance.
first check the sensitivity adjustment potentiometer R, and R,, discover potentiometer R, breaking the circuit, causing the gas sensitive pipe to work abnormally, replace the potentiometer R” re-adjust the potentiometer R¨the gas sensitive pipe works normally and troubleshoots.
5.no alarm sound
when contacting gas, if integrated circuit A, the output of pin 7 is high, the light emitting tube should be checked H。 whether it is shining, if H. if not lit, it is R,。 or VT, open the way; if H。 on, it is the speaker BL bad or damaged music integrated circuit.
6.alarm sounds keep
when there is no combustible gas, if the output of pin 7 of the integrated circuit gas is low, but the alarm sounds are not stopped, the light emitting tube should be checked H。 whether it is shining, if H。 light, then VT。 breakdown; if H。 if it doesn't light up, the music integrated circuit will be damaged.
7.exhaust motor control failure
when the fume purifier comes into contact with combustible gas, the exhaust motor does not rotate, or when there is no combustible gas, the exhaust motor continues to operate, which is a phenomenon of failure of the exhaust motor control. (1)when encountering combustible gas, the 8 pin of the integrated circuit should be at a low potential, if 9 V the voltage is normal, the motor still does not rotate, usually a transistor VT: it is broken down, causing the relay to be unable to be released, and the normally closed contact cannot be connected to the motor power supply. at this time, Hz it should always be glowing, it should be replaced VT:。
(2)if the motor is running continuously when there is no combustible gas, it is the coupling resistance. R,。 or transistor VT: open circuit, capacitor C。
leakage causes the relay to not be absorbed or the relay coil is broken.
8.when the motor rotates, the noise is too high. you should check as follows:
(1)whether the motor fan impeller is damaged.
(2)is the motor impeller loose?
(3)is the motor bearing gland screw loose?
(4)whether the motor bearing is bent and deformed, whether the rotor is tilted to one side, and whether the rotation is swept the chamber.
the above are some common fault repair methods for catering oil fume purifiers, and i hope it will be useful to everyone. sometimes we can actually solve some problems with electrical appliances ourselves, but if we really can't solve them, we can ask relevant industry experts. in addition, when trying out oil fume purifiers, you should pay attention to the correct use. for example, there must be a filter in the direction of the air inlet, and you must never block the oil discharge port and pay attention to the details. you must carefully read the instructions for the oil fume purifier you just bought. only by making the oil fume purifier better use.
common faults and solutions for oil fume purifiers
fume purifier
fault situation
analysis of the cause of failure
troubleshooting methods
ammeter is not working
1security or door switch short circuit
2module overheating short circuit
3short circuit between high voltage terminal and electric field
4positive and negative electric field short circuit
1replace fuse or stroke switch
2turn on the power switch and restart
3connect the high-voltage terminal with a spring to turn on the electric field
4exclude electric field short circuit processing
there is continuous slapping sound in the device
1the electrode plate is too wet
2the electrode plate is too dirty and has debris
3the electrode plate or rack is deformed
4poor grounding
1let the fan run for 20-30 minutes and blow dry the moisture in the equipment
2remove oil
3adjust or replace
4connect the grounding head
poor smoke removal effect
1the wind is too fast
2the output voltage is too low
3the electric field electrode plate is too dirty
1install matching fans
2remove oil
3clean the electric field electrode plate
note: if any of the above plans cannot be eliminated, contact the manufacturer in time for processing or repair and inspection.
1、when the fan vibrates violently, it hits the inner wall of the volute. at this time, the fan makes abnormal sound and violent vibration. the reason is that the fan is being stored and transported, causing the fan housing or impeller to deform during installation. there is dust accumulation on the impeller blades. dirt debris; or impeller is compressed and deformed, or blades are worn; or debris in the pipeline damages the impeller; or the wheel shell and blades of the impeller are loose; or the fastening bolts connecting the impeller and the spindle are loose. the above situations will cause the impeller rotation to cause imbalance and cause the fan to vibrate. the installation foundation of the fan is not flat, or the fan's coupling parts or anchor bolts are not tightened, or the fan's coupling bolts are loose during use. the coupling bolts, bearing seats and pulley lock sleeves of bearing seats and brackets are loose; the bearings are damaged or the fan spindle is bent. due to the unqualified increase in rotation speed, the fan blades are deformed to cause the wind wheel to jump.
2、the motor current is too high or the motor temperature rises too high. the air valve at the air inlet or outlet is not adjusted properly when the fan is started. mechanical friction, violent vibration. the motor bearing is damaged or poor lubrication. the motor quality does not meet the relevant manufacturing standards. the gas density or temperature is too high. the fan and pipeline selection are unreasonable, and the motor is running overloaded. the fan speed is too fast or the flow is too high. 3. the air volume is not enough. the design is improper before installation, and the air volume is lost. wind resistance is not considered in detail. the exhaust duct is too long and too bent, which increases the air resistance and affects the air volume. 4. the motor does not start if it does not rotate, the line is blocked or the motor is damaged. the voltage is low, and the power line is short-circuited and phase-lost. the belt slips. 5. the belt slides down or jumps, and the belt is not aligned with the belt slot. the belt is worn or too big.
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