Hello, As the aeg vacuum cleaner started to turn off by itself, I decided to fix it. I read that this is a fairly known problem, and the motor disconnects the sensor under one of the brushes - I pulled out the motor to see if it is working properly and after connecting to the speed controller,...

And everything is clear - a broken chip .

Have you checked what voltage is deposited on the zener diode D1?

On the D1 diode, the voltage in the DC range of the multimeter flows in the range of 2.31 ÷ 2.43 [V]. I have not checked the sensor yet (I am in the process of selecting it - it is on the stator winding), but check it by heating it and checking at what temperature it will disconnect?

Say what you plug into that white pin socket. I thought it was this sensor - probably a thermistor.

I plug in a potentiometer (speed control) into this white socket and it works. And, as I wrote, under the brushes, it is not there, but there is an element on the stator winding and it is rather him.

I am so sorry for that . Does anyone know what this system is, can it be changed with something? PS. Where to find the exact model name of this vacuum cleaner? I am asking because I did not find anything in the papers and there is only the inscription aeg ergoeasy on the casing, and when I was looking for the entire module, it was the vacuum cleaners that were distinguished by a series of numbers.

Maybe insert the soft start system itself for PLN 12. Maybe a regulator on the system. U2008 with soft start.

Hello, after a long break. I decided to create a soft-start circuit board on the U2008B chip, as proposed by ElectroTom, and exactly I followed the diagram from this pdf . The results of my work: PS. I know that the board does not knock you down, but this is my beginnings in PCB design. I connect the ground to the electronics with a jumper (yellow line on the PCB). Unfortunately, when trying with a 40W bulb, there is no adjustment or soft-start. I connect the bulb to points 2 and 3, the voltage from the mains to 1 and 4. Maybe someone has some experience with this system, or he will notice my mistake somewhere. I will be grateful for your help. PS2. If necessary, I will upload eagle files.

================================================== ======== The vacuum cleaner motor is damaged, possibly caused by running at reduced speed for too long and an overfilled dust bag. The protection sensor first switched off after exceeding the current of 8A, and after removing this protection, the motor surely failed (short circuit of part of the winding).

Electrolux AEG Vacuum Cleaner: Speed Regulator Failure and Possible 501B-8P Chip Issue

SLen 28755 10

Treść została przetłumaczona

Zobacz oryginalną wersję tematu

Reply | New topic

#1 12186605 11 Apr 2013 19:17

SLen SLen

Level 10

» |

Post #1
12186605 11 Apr 2013 19:17

Hello,
As the aeg vacuum cleaner started to turn off by itself, I decided to fix it. I read that this is a fairly known problem, and the motor disconnects the sensor under one of the brushes - I pulled out the motor to see if it is working properly and after connecting to the speed controller, the motor does not start at all.
- all diodes and resistors checked - OK,
- I checked the triac using the method from the attached diagram - OK,
- the capacitors are not short-circuited (I have not checked the capacitance),
- no voltage at the regulator output (blue wires),
- the most powerful resistors heat up (these 10k Ohm),
I care about the repair of the regulator, because when I connected the engine to check directly to the network, the plug burned out 16A (the 2kW engine according to my calculations normally takes 8.7A and for start-up I do not know how much, but probably more + other connected devices - the effect as I wrote ...).
In this case, the 501B-8P chip is blamed. If anyone knows what this system is, what is its replacement, or has any other suggestions and comments for the diagnostic activities I have performed I will gladly accept any information and suggestions.
best regards
ADVERTISEMENT
#2 12186950 11 Apr 2013 20:33

ElectroTom ElectroTom

Level 25

» | Helpful post? (+4)

Post #2
12186950 11 Apr 2013 20:33

The colleague sensor checked?
ADVERTISEMENT
#3 12188119 12 Apr 2013 01:05

machefi machefi

Home appliances specialist

» | Helpful post? (0)

Post #3
12188119 12 Apr 2013 01:05

Have you checked what voltage is deposited on the zener diode D1?
#4 12191087 12 Apr 2013 21:14

SLen SLen

Level 10

» | Topic author Helpful post? (0)

Post #4
12191087 12 Apr 2013 21:14

On the D1 diode, the voltage in the DC range of the multimeter flows in the range of 2.31 ÷ 2.43 [V].
I have not checked the sensor yet (I am in the process of selecting it - it is on the stator winding), but check it by heating it and checking at what temperature it will disconnect?
ADVERTISEMENT
#5 12191244 12 Apr 2013 21:37

ElectroTom ElectroTom

Level 25

» | Helpful post? (+2)

Post #5
12191244 12 Apr 2013 21:37

Say what you plug into that white pin socket. I thought it was this sensor - probably a thermistor.
ADVERTISEMENT
#6 12191301 12 Apr 2013 21:46

SLen SLen

Level 10

» | Topic author Helpful post? (+1)

Post #6
12191301 12 Apr 2013 21:46

I plug in a potentiometer (speed control) into this white socket and it works.
And, as I wrote, under the brushes, it is not there, but there is an element on the stator winding and it is rather him.
Helpful post

#7 12191809 12 Apr 2013 23:18

machefi machefi

Home appliances specialist

» | Helpful post? (+2)

Helpful post
Post #7
12191809 12 Apr 2013 23:18

SLen wrote:
On the D1 diode, the voltage in the DC range of the multimeter flows in the range of 2.31 ÷ 2.43 [V].

And everything is clear - a broken chip .
#8 12191869 12 Apr 2013 23:38

SLen SLen

Level 10

» | Topic author Helpful post? (0)

Post #8
12191869 12 Apr 2013 23:38

I am so sorry for that . Does anyone know what this system is, can it be changed with something?
PS. Where to find the exact model name of this vacuum cleaner? I am asking because I did not find anything in the papers and there is only the inscription "aeg ergoeasy" on the casing, and when I was looking for the entire module, it was the vacuum cleaners that were distinguished by a series of numbers.
#9 12198082 14 Apr 2013 17:08

ElectroTom ElectroTom

Level 25

» | Helpful post? (0)

Post #9
12198082 14 Apr 2013 17:08

Maybe insert the soft start system itself for PLN 12. Maybe a regulator on the system. U2008 with soft start.
#10 12548650 22 Jul 2013 15:17

SLen SLen

Level 10

» | Topic author Helpful post? (+3)

Post #10
12548650 22 Jul 2013 15:17

Hello, after a long break.
I decided to create a soft-start circuit board on the U2008B chip, as proposed by ElectroTom, and exactly I followed the diagram from this pdf .
The results of my work:

PS. I know that the board does not knock you down, but this is my beginnings in PCB design. I connect the ground to the electronics with a jumper (yellow line on the PCB).

Unfortunately, when trying with a 40W bulb, there is no adjustment or soft-start. I connect the bulb to points 2 and 3, the voltage from the mains to 1 and 4. Maybe someone has some experience with this system, or he will notice my mistake somewhere. I will be grateful for your help.

PS2. If necessary, I will upload eagle files.
#11 14225101 15 Dec 2014 15:18

watek watek

Level 10

» | Positive voted Helpful post? (+7)

Post #11
14225101 15 Dec 2014 15:18

SLen wrote:
Hello,
As the aeg vacuum cleaner started to turn off by itself, I decided to fix it. I read that this is a fairly known problem, and the motor disconnects the sensor under one of the brushes - I pulled out the motor to see if it is working properly and after connecting to the speed controller, the motor does not start at all.
- all diodes and resistors checked - OK,
- I checked the triac using the method from the attached diagram - OK,
- the capacitors are not short-circuited (I have not checked the capacitance),
- no voltage at the regulator output (blue wires),
- the most powerful resistors heat up (these 10k Ohm),
I care about the repair of the regulator, because when I connected the engine to check directly to the network, the plug burned out 16A (the 2kW engine according to my calculations normally takes 8.7A and for start-up I do not know how much, but probably more + other connected devices - the effect as I wrote ...).
In this case, the 501B-8P chip is blamed. If anyone knows what this system is, what is its replacement, or has any other suggestions and comments for the diagnostic activities I have performed I will gladly accept any information and suggestions.
best regards

================================================== ========
The vacuum cleaner motor is damaged, possibly caused by running at reduced speed for too long and an overfilled dust bag. The protection sensor first switched off after exceeding the current of 8A, and after removing this protection, the motor surely failed (short circuit of part of the winding).
Create an account, log in and become active in a forum and ads will not appear. You will receive points by participating in discussions.
Join this discussion.

Install the application

Reply | New topic

Report a violation of the law

Topic summary

The discussion revolves around a failure in the speed regulator of an Electrolux AEG vacuum cleaner, specifically related to the 501B-8P chip. The user reports that the vacuum cleaner turns off unexpectedly, and after troubleshooting, they found no voltage at the regulator output and overheating of certain resistors. Various responses suggest checking the zener diode voltage and the sensor on the stator winding. The user later confirms that the chip is likely damaged and inquires about potential replacements or modifications, including the possibility of using a U2008 chip for a soft-start circuit. Additional insights mention that the motor may have been damaged due to prolonged operation at reduced speed and an overfilled dust bag.
Summary generated by the language model.