In detail: DIY repair of a philips hd9020 bread maker from a real master for the site my.housecope.com.
A malfunction at a home bakery can take you by surprise. It can, of course, be taken to a service center, but some malfunctions that have arisen in your bread maker can be eliminated by yourself.
The following breakdowns are most often found in stoves:
malfunction of the thermal sensor;
burnout of the heating element;
software failure in the control module;
the electric motor is out of order;
the belt slipped off;
no power supply;
faulty reverse relay;
breakage of the ingredient bucket.
Other breakdowns inherent in other models and brands are not excluded, because there may be differences in design features.
The quality of the baked bread depends on the correct operation of the temperature sensor. If the thermostat is faulty, the bread will burn, or vice versa, it will remain unbaked. It is this sensor that regulates the temperature in the bread maker during the baking program. The figure below shows, for example, what the thermal sensor of the Kenwood Bread Maker looks like.
Thermal fuses are often located near the thermistor. They do not allow the temperature to be exceeded above a certain one, if the thermostat fails.
After disassembling the baking unit, it will not be difficult to find these parts by their external signs. It will also be easy to replace them with new ones, having previously bought them on the Internet or at a service center.
It is very easy to suspect that the heater is not working: the bread simply will not be baked... In order to check this, it is necessary to disassemble the device:
unscrew the screws at the bottom of the stove and inside it by opening the lid;
then carefully disconnect the bottom from the case without breaking the wires;
disconnect the wires from the terminal block;
you will see a large metal tubular ring.
Video (click to play).
This is the heating element (tubular electric heater). In some models of bread makers, it may be located inside an iron bucket container. It can be checked for burnout tester... If the burnout is confirmed, it must be replaced with a new one.
If your bread oven began to behave strangely: some buttons stopped turning on, a signal for the end of baking appears, when it has just begun, this may signal a breakdown of the software module. Unfortunately, you cannot repair bread makers with such a breakdown on your own. This should be done by qualified personnel from service center... Otherwise, unknowingly, you can aggravate the malfunction and it will be more difficult and more expensive to repair the module.
This breakdown is easy to determine. If you turn on the machine, and the mixer does not start to rotate and you do not hear the sound of the engine running, this means that the rotary movement from the pulley - the electric motor is faulty. Repair of this unit of the unit, as mentioned above, must be carried out by a master.
In the case when, after turning on the apparatus, the noise of a running motor is heard, but the paddle does not spin, or when the ingredients are poured, they do not mix well, then the reason for this may be wear or slippage of the toothed belt from the pulley.
The belt of the bread machine can be found by removing the bottom of the machine. By wear rate the belt of the drive of the bread machine is determined whether it needs to be replaced with a new one.
A common reason the bread maker simply won't turn on is a lack of power. First you need to check electrical plug and the cord itself. Next, you have to check the power supply, as a rule, a pulse one. It has its own fuse. But you should not rush and change it. If, after connecting a 100 W light bulb to the circuit, it lights up, then urgently turn off the power to further search for a short circuit. When the power supply is working, the light should not glow, it can only blink.The power node usually consists of rectifier and capacitor... This is where the malfunction lies.
Do-it-yourself bread maker repair in this case is possible if you are at least a little versed in the radio business.
In some inexpensive units, the paddle (agitator) is removed from the shaft. For this, a hook is included with the apparatus for extracting it from the bread. But there are models when the stirrer is folded. If after baking on the product you find an oar print, then the reverse is faulty.... Repair to eliminate this trouble of the bread maker should take place with the participation of a specialist.
Repair of a bucket of a bread machine due to failure bearing and oil seal you can make it yourself. Symptoms that this is the exact reason are as follows:
there is a small leak from the container;
wedging or complete wedging of the shaft.
For a better understanding, the repair of a bread machine is shown below.LG do it yourself about replacing the bearing and oil seal (unit model LG HB-155CJ).
It is required to get the bucket and remove the ring, which is a stopper for holding a metal washer with plastic lugs on the shaft. At this stage, the ring set for fixing the bearing you can leave it alone.
The next step is to pull the bearing out of its seat. You cannot knock on the bucket, as it is fragile and can crack. It would be correct to use a special two-fingered puller... The stripper is fixed in a position where its hooks are well fixed in the grooves on the bucket body.
A metal plate 1-2 mm thick will need to be placed on the bearing shaft.
After that, start screwing in the axle of the device until the oil seal from the bearings falls out from the inside of the bucket. The next photo clearly shows the poor condition of the parts.
Now you can unclip the bearing.
Next, you need to remove the defective part from the shaft using the same puller and clean it from dirt using alcohol (do not use solvents and gasoline to clean the shaft).
To continue, you will need to purchase necessary spare parts: 608th ball bearing (outer diameter 22 mm, inner diameter 8 mm, height 7 mm) and special white seal.
Further, in reverse order:
Slide the bearing onto the shaft and install the retainer.
Carefully press the bearing into its seat. It should be refrigerated before installation. You can also heat the bucket. Impacts when pressing in are not allowed.
Now you can fix the shaft with a special washer-stopper.
In conclusion, you will need to install an oil seal. The repair of the bread maker's bucket is over!
Not all possible breakdowns of the bread baking machine were considered, since it is impossible to list them completely, and it depends on the characteristics of models of different brands. However, you can fix some faults using this manual yourself.
Self-baked bread is not only tasty and healthy, but also economical. In addition, only those bakery products that you like will be on the table, and even at the right time. And if the technique had never broken down, then an almost perfect picture would have turned out.
But malfunctions often plague us at the most inopportune moments. And all that remains to be done is to repair the bread maker with your own hands. Not all problems can be fixed by average users on their own, some of them will have to be fixed by professional repairmen from the service center.
The most common breakdowns:
heating element malfunctions;
failure of the temperature sensor;
problems with the software (board);
engine breakdown;
slipping of the belt from the pulley;
lack of food;
oar malfunctions;
breakage of a bucket or bowl for setting ingredients.
There are other problems as well, since each model of the bread maker has its own design features.
Bread baked with your own hands using a bread machine is tasty, healthy and economical
If the dough remains moist for a long time and does not rise in the bowl, it means that the heating element has broken.Also, in some cases, there is a failure of the temperature sensor or thermistor. In the situations described, repairing the bread maker with your own hands is not worth it if you are not sure of a successful result.
Bread baking appliances are more complex than, for example, microwave ovens or washing machines. Here, the execution of all operations is electronically controlled at the software level. In this situation, you can decide to repair the bread maker with your own hands if you are well versed in the design of printed circuit boards, etc.
When you see that the dough is kneading, but does not reach readiness, and sometimes an oar print remains on it, then the reverse relay is out of order. It rarely happens that the mechanism that drives the oar itself gets jammed.
Well, if there is complete silence after turning on the household appliance or the paddle is still, you can be sure that the engine itself has broken. In this case, it will not be possible to repair the bread maker with your own hands, you need to contact a specialized repair company.
It is better to entrust the repair of engine breakdowns to a specialist.
Without load, the paddle will rotate very easily and quickly, but when the first ingredients appear in the bowl, it will not be able to move on its own. This clearly indicates that the belt is not being accelerated from the pulley.
It happens that spinning the paddle by hand helps, but this is the first sign of failure of the electric motor. The reason for this is a worn or over-tightened belt, which is most often due to an insufficient amount of lubricant.
Before you repair the bread maker with your own hands, remember that you cannot count on warranty service. So if the warranty period has not yet expired, the best option in this case would be to contact a service center.
You need to start checking with the plug and cord, and then move on to other components of the electrical equipment of the bread machine. Pay attention to the serviceability of the switching power supply - whether the fuse has blown. But do not rush to change it until you have precisely established the cause of the short circuit.
To test, connect a regular light bulb to the circuit. With proper operation of the power supply, it will not light up constantly, at most it will turn on and immediately go out. And remember that the repair of the bread maker will be completed successfully only when you find and eliminate the malfunction of the electrical equipment.
It happens that the lid of the bread machine closes very tightly or, conversely, not tightly. This suggests that the mechanism of the cover itself is most likely damaged. Most often, in such a situation, you will have to buy and install a new cover.
The bread maker's bucket sometimes starts to leak in the place where the movable connection occurs. If you are techie friends, you can try to disassemble the appliance and fix the problem yourself. But if you have the slightest doubt, contact a professional repairman.