A hob is a device that is needed for cooking food in an open way, that is, by boiling, stewing, frying. Electronically controlled hobs from Gorenje are quite technologically advanced devices that are capable of regulating the temperature, switching off or operating on time. However, often these devices fail, but it is difficult to know the reason. The company produces several types of such panels - combined type with gas, induction, purely electric and purely gas. The latter type does not have an audible or electronic indication of problems. Other types notify you of a problem with sound or on the control screen.
Induction cooker TT-EM3000 turns on with error E4
Introduction. Confirming the “electric train effect”, several induction cookers were repaired at the same time. If the first two cases were quite simple and did not take much time to repair, then the third case caused trouble. I would like to note that if the company does not specialize in repairing induction cookers, then there is no point in buying special cookware, so such equipment should be accepted for repair only with cookware. Malfunction according to the customer. The TT-EM3000 induction cooker turns on with error E4.
Primary diagnosis. It was not possible to find instructions for the TT-EM3000 induction cooker, so error E4 did not mean anything. Therefore, we begin diagnostics by replacing all capacitors, which did not produce results. It was also not possible to find the circuit; the identification marks on the board include the inscription QC-3kW-P12 and the date 2007-11-6, so we take the first circuit we came across as a basis
Repair. Since the error occurs when turned on, we assumed that there is an error in the feedback circuits, and since the fuse is not lit, it is logical to assume that the power part is working.
The culprit of the breakdown is the stabilizer U3 (7805)?
E3 – reduced input voltage. As we received it, we turned on the stove from external power supplies, while 220V was not supplied to the power switches, respectively, to the current transformer. Error E3 can be obtained if the resistance of the trimming resistor VR1 (10 kOhm) = 0 Ohm
E4 – increased input voltage. As we received it, the trimming resistor VR1 (10 kOhm) was unscrewed to the opposite position, from position E3. Resistance of trimming resistor VR1 (10 kOhm) = 10 kOhm.
Trimmer resistor VR1 (10 kOhm) and current transformer T1
Since the error did not disappear, the tuning resistor VR1 (10 kOhm) was replaced with two fixed resistors 4.7 kOhm - error E4 disappeared and did not appear again. Conclusion. The nameplate says “Keep a MIN distance of 80mm between ventilation slots and walls!”, but there is a bend on the cable, which indicates that the stove was pressed against the wall, which is strictly not allowed.
The cable bend is visible to the naked eye
For reference.
Induction cooker TT-EM3000 without casing.
Although the tile is 3kW, it has two fans on board for cooling
Induction cooker TT-EM3000, power board with the inscription QC-3kW-P12 and the date 2007-11-6
Induction cooker TT-EM3000, display board QC1-DLC3000W-D12 and date 2005-2-17
Source
Induction cooker errors: we can repair it ourselves
Sometimes the induction cooker may display a certain error code on the control panel. What each code means and how to repair the fault - advice from the expert in our article.
Sometimes the induction cooker may display a certain error code on the control panel. Some faults can be repaired manually, while others require specialized intervention from a service center. We will look at common error codes for induction cookers.
Kitfort KT-104
Please note that the errors themselves for slabs from all companies are the same, but the display may be different. For example, in Gorenije stoves the error is indicated by the letter E, while in Hansa models it is indicated by the letter F. It is also worth considering that the errors discussed here and their solution apply exclusively to induction cookers. Problem solving for conventional electric cooktops can be completely different.
Error E3
Error E3 indicates unstable voltage. It can be either low or high.
Solution: You need to check the voltage while the device is running. To do this, place the cookware on the burner and turn it on for 1 minute. Then, in operating mode, measure the voltage between phase and zero. To measure the voltage, see the connection diagram drawn under the stove. If the voltage is normal and the stove is working, then there was just a surge. If the voltage is high or low, then you should contact the organization that is responsible for supplying electricity to your home. And if the voltage is normal, but the stove does not work, you will have to call the service center.
The most powerful burner does not turn on
If a 3 kW burner does not work, the reasons may be different. When all other burners are turned on and the temperature in the area of the induction unit approaches 800 degrees, this situation is normal. To prevent overheating of the stove, the most powerful burner is automatically blocked. If this is not the reason, you will have to replace the control unit.
Basic errors of malfunctioning induction cookers
Housewives use a stove or hob more often than other appliances. Induction cookers appeared on the market not so long ago, but have already proven themselves quite well.
The most popular manufacturers of induction cookers today:
All these manufacturers produce high-quality equipment, but they are not immune from malfunctions and errors during operation.
Hob installation
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— The installation of the hob must provide constant access from below to the two front mounting brackets
elements.
— The use of wooden tabletop skirting boards on the back side of the hob is possible with
compliance with the minimum permissible distances shown in the installation diagram.
— Under the hob you can install ovens of types EVP4, EVP2, EVP3, equipped with a cooling
fan.
INSTALLATION OF HOB
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The most common malfunctions of induction cookers
Let's look at what malfunctions happen with this type of equipment and how they can be fixed.
The stove does not turn on
Make sure that the cookware you use is suitable for the type of stove and will not move off the burner. Otherwise, the stove will turn off the power. On induction cookers, the burner does not heat up. If everything is in order with the dishes, you need to contact a specialist to identify the breakdown.
The stove turns on automatically when there is no cookware on it
It is necessary to remove all metal objects from the surface of the stove and clean the stove. If the malfunction is not resolved, then the problem is in the control unit. It needs to be repaired or replaced.
Induction cooker repair
Induction cooker not working
You should contact the service for this. There, technicians will be able to check the fuse, identify the blown part and replace it.
Lack of power
This is often caused by a defective power cable. The workshop will fix this problem and you will be able to use your tiles again.
Heating problems
A low heating rate may be due to the inappropriate diameter of the bottom of the pan for this burner. It is necessary to check the tightness of the cookware to the surface of the burner. If the pressure springs are loose, they need to be tightened to the level specified in the instructions. You can see how to do this in the video.
Automatic device shutdown
This happens if:
Stove in use
Moscow, Yakimanskaya embankment…
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SVK_SS
ru (12-15)
Importer: Gorenye BT LLC
119180, Moscow, Yakimanskaya embankment, 4, building 1
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Error codes for induction cookers from various manufacturers
It often happens that the induction cooker gives an error. To understand exactly what problem has arisen, you need to know what kind of malfunction a particular code displays.
Thus, error E3 of an induction cooker means that the mains voltage is outside the operating range, and error E0 indicates that the device is incorrectly configured. However, codes from different manufacturers may indicate different faults. For example, code E0, in addition to problems with the settings, may also mean there is no cookware on the burner, and code E3 may mean problems with the inverter.
Let's look at the fault codes that can be issued by induction cookers from manufacturers Electrolux, Combustion, Bosch, Miele and Kitfort, with decoding.
An Electrolux induction cooker error can be indicated by one of the following codes:
If errors E3, E5 and E6 occur, you must seek help from a qualified technician so as not to damage the device.
Induction cooker Electrolux
Fault codes for Miele induction cooker:
Induction cooker Miele
An error on a Bosch induction cooker is indicated by the code:
If any of these codes appear on the display and it is impossible to carry out independent repairs, it is recommended to take the stove to Bosch service center specialists to troubleshoot the problem.
Manufacturer model fault codes Combustion:
Kitfort induction cooker error codes
Bonding foam seal
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BONDING FOAM SEALING
Some models are supplied with the seal already glued.
Before installing the appliance into a countertop on the underside of a glass-ceramic or glass
The hob needs to be glued with a sealant, which is included in the kit.
— Remove the protective film from the seal.
— Glue the seal on the underside of the glass ceramics or glass, stepping back from the edge 2-3
millimeter. The seal must be glued around the entire perimeter of the hob and not in the corners.
must overlap each other.
— When gluing the sealant, make sure that sharp objects do not come into contact with
glass ceramics/glass (for example, do not cut the seal on glass ceramics/glass).
Installation of the device without a seal is prohibited!
— The countertop of the kitchen set must be flat and horizontal.
— The ends of the cutout should be suitably sealed to protect against moisture and dirt.
— Screw the included fasteners (4 pcs.) with screws (4 pcs.) onto the left and right
the side walls of the hob into the existing holes and slots.
— Install the hob into the mounting opening and press it against the countertop from above.
— To screw the mounting brackets, screws no longer than 6.5 mm are allowed.
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What to do if malfunctions are detected
An induction cooker can break down just like any other household appliance. Even stoves from well-known manufacturers such as Bosch or Electrolux can sometimes produce errors. Therefore, if any error code lights up on the display of your induction cooker, and you are not sure that you can fix the problem yourself, you should not take the risk. In this case, it is better to entrust the equipment to specialists who will solve the problem without harming your stove. Undertake self-repair only if you are fully confident that you know how to fix the problem.
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Disassembly and diagnostics of the stove
If your induction cooker stops working, you need to troubleshoot. This must be done by a person with the appropriate skills. First of all, the device is disconnected from the network. The surface is then removed to inspect the induction coils and cooling system. The presence of problems is indicated by a suspicious color of the winding or other parts, traces of soot or melting.
If everything is in order, you can start checking the electrical part. To do this, use the electrical diagram that is in the device passport.
The verification algorithm is as follows:
- checking contacts, cables, safety block;
- inspection of induction coil spirals: identification of damage, contact of turns, foreign objects;
- testing temperature sensors.
