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How to troubleshoot common issues with your mixer blender machine

Feb 17, 2025

Mixer, is an essential equipment in the modern kitchen and food industry, the efficient mixing and stirring function greatly improves work efficiency. But the frequency of use is high, the mechanical structure is complex, it is easy to fail. This paper systematically analyzes the common faults of mixer from the principle, puts forward the corresponding diagnosis, elimination methods and maintenance suggestions, in order to improve the efficiency of the equipment use, and prolong the service life.

Mixer working principle description —> fault analysis basis

The premise and basis of fault diagnosis and elimination is understanding the working principle of mixer. In a nutshell, the mixer mainly consists of a motor, a transmission mechanism, and a mixing part. The motor supplys power, and the power through the transmission mechanism is passed to the mixing part, and then the mixing, mixing or emulsification of the material is achieved. Various mixers have different transmission mechanisms and mixing components of the design, but the basic principle is the same.

Diagnosis methods for common fault types

Mixers have many faults, but common faults can basically be classified into the following types, supplemented by diagnostic methods.

2.1 Motor failure:

Fault characteristics: motor cannot start, start difficulty, abnormal running sound, motor heating and so on.

Diagnosis method:

Power detector: Check whether the power socket output is normal, whether the voltage is normal and meet the rated voltage requirements of the mixer.

In order to check overload protection, some mixers have overload protectors.

(Need to power off operation) Measure resistance values using a multimeter to check for opens or shorts on the motor winding.

Inspection of carbon brushes for motors: For motors with carbon brushes, check if the carbon brush is worn out and has poor contact.

Failure of the transmission mechanism:

Fault phenomenon: weak rotation, uneven rotation, abnormal sound of stirring parts, etc.

Diagnosis method:

BELT INSPECTION: For mix-ers with a belt drive, check the belt for slack, wear or breakage.

Gear inspection: For gear driven mixers, inspect the gear for wear, missing teeth or inadequate lubrication.

Bearing inspection: Look for bearing wear, looseness or lack of lubrication. You can check the play or looseness by inversion and rotate the element manually to feel if there's some sticking friction or abnormal sound.

2.3 Mixing component failure:

Fault phenomenon: mixture, parts loose, deformation, fracture, can not install disassembly.

Diagnosis method:

Look: Check whether there is evident physical damage of stirring parts, such as cracks, deformation, etc.

Check for a connection: Check whether the connection between the mixing parts and the drive shaft is tight and check for loose screws.

Balance check: Check the working balances of several mixing parts.

2.4 Control system failure (Advanced Mixer) :

Fault embodiment: There are no controllable phenomena on the control panel, key failure, program failure, etc.

Diagnosis method:

Power check: deternmin whether the power supply of the control system is in normal.

Cables Connection check: Check whether cables from control panel to main control board are loose or disconnected.

Software: Attempt to reboot the device and see if it is recoverable. If applicable, upgrade or reset the control software.

Three, the mixer troubleshooting method

Based on different fault types, the following troubleshooting methods can be used:

3.1 Motor troubleshooting:

Change the carbon brush: When the carbon brush of the motor wears seriously, the same model of carbon brush should be replaced in time.

For the series of motors whose winding has been damaged or seriously aged, in order to ensure safe operation of the equipment, it is recommended to replace the new motor.

Motor maintenance: If you have a professional knowledge and skills, you can try to use motor, but be sure to ensure the power off operation, pay attention to safety.

3.2 B Troubleshooting transmission mechanism

Change the belt: Change loose or worn belts and re-adjust the tightness of the belt.

Gears: Replace worn or damaged gear or get them repaired professionally.

Lubricate the bearing: Apply a proper quantity of lubricating oil or grease on the bearing inner ring and outer ring to reduce the resistance, friction, and friction heat.

3.3 Mixing components troubleshooting:

Post-upgrade mixing parts: change the deformed or damaged mixing parts to ensure the mixing effect.

Screwing: re-screwing the mixing part to drive shaft connection screws.

Dynamics Saturation: Set the load weight of the mixing component to achieve a balanced body and decrease resonance.

3.4 Control system troubleshooting

Inspect the wiring: Reattach the frayed wires.

Replace the control panel – Replace the damaged control panel

Reset software: Reset or update the control software

4, mixer daily maintenance recommendations

Maintenance matters: Regular maintenance can significantly reduce the failure rate of the mixer and extend its service life.

4.1 Cleaning: Clean the mixing parts and fuselage in time after each use to prevent material residue from corroding the equipment.

4.2 Lubrication: Regularly inject lubricating oil or grease into friction components such as bearings to reduce friction and avoid wear.

4.2 Periodic check: belts, gears, wires and other components should be checked regularly, and any abnormalities should be dealt with in time.

4.4 Reasonable using: Do not overload operation, select the mixing speed and working time.

4.5 Large or precision mixer regular professional maintenance, overhaul.

Safety precautions

All rights reserved editing years more should be based on mixer fault diagnosis and eliminating the whole machine operation, but remember to take safety first embarrass the generator menjaga troubleshooting process circuit.

Power off operation: First of all, cut off the power supply for electrical related repairs.

Use protective equipment: Protect with gloves and glasses when repairing the mechanical part.

Seek professional help: For complex faults, it is recommended to seek the help of professional maintenance personnel to avoid greater economic losses or personal injury caused by improper operation.

To sum up, through the understanding of the working principle of the mixer and the mastery of the common fault diagnosis method and the elimination of skills, and strengthen the daily maintenance, can effectively improve the efficiency of the mixer, extend the service life, and ensure the safe production.