Hello I have this problem. Yesterday the workers from tauron were doing something to the mains and after switching the power back on there was a big bang in the house and all the electronic devices including the gate controller went out. The controller shows that there is a burnt (torn)...

How sure are you that there was a capacitor there?

I don't know if it's a capacitor, or if it's called something else, but I can see that it's burnt out and it's just the side where the markings are.It's plugged in parallel to the 220v supply, the size of a 50groszy and it's blue in colour

Try to solder this component then perhaps from the description on the PCB you will be able to find out what it is.

For the time being I have to wait for the commission from TAURON which will estimate the losses, and there is quite a lot of it, all white goods, washing machine dishwasher cooker

Wait for the commission, then you will see what is worth doing. Most often they will reimburse the cost of repair or replacement if it can't be repaired. You will need a VAT invoice for reimbursement. Your fault looks simple and the faulty component is probably a varistor. The purpose of the varistor is to protect the equipment from surges.

But what kind of varistor could be there because you can't read anything from the old one, the only thing is that it is blue in colour. One more thing, what are the symptoms of a tripped varistor, because now my fuse in the controller blows all the time

Almost certainly a S20K275 varistor, blue with a diameter of 20mm. It costs about £2.

Hello, I finally managed to find the values of this varistor. It is a ZOV 14D 431K,(you can see when you zoom in) but I can't find one anywhere.What replacement could I give

reverence, colleague @domsat has already written to you. However, I suggest a small correction. Instead of S20K275 ===> S14K275 (lower power, i.e. 0.6W) and therefore the S14K275 exactly fits as a replacement for yours.

Thanks, That's the one I used that my colleague domsat suggested, because I couldn't find the smaller one, the most important thing is that everything works nicely. Many thanks to colleagues who helped me solve the problem

What capacitor for the gate controller after a power surge?

stefan1908 3159 11

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#1 15735274 11 Jun 2016 14:37

stefan1908 stefan1908

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Post #1
15735274 11 Jun 2016 14:37

Hello I have this problem. Yesterday the workers from tauron were doing something to the mains and after switching the power back on there was a big bang in the house and all the electronic devices including the gate controller went out. The controller shows that there is a burnt (torn) capacitor just below the 220V power plug. Maybe one of my colleagues could suggest what kind of capacitor could be used there, because the old one doesn't give any readings

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Bez tytułu.png Download (3.27 MB)
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#2 15735291 11 Jun 2016 14:43

niewolno2 niewolno2

Level 40

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Post #2
15735291 11 Jun 2016 14:43

How sure are you that there was a capacitor there?
#3 15735724 11 Jun 2016 17:51

stefan1908 stefan1908

Level 10

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Post #3
15735724 11 Jun 2016 17:51

I don't know if it's a capacitor, or if it's called something else, but I can see that it's burnt out and it's just the side where the markings are.It's plugged in parallel to the 220v supply, the size of a 50groszy and it's blue in colour
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#4 15735745 11 Jun 2016 18:02

niewolno2 niewolno2

Level 40

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Post #4
15735745 11 Jun 2016 18:02

Try to solder this component then perhaps from the description on the PCB you will be able to find out what it is.
#5 15735761 11 Jun 2016 18:12

stefan1908 stefan1908

Level 10

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Post #5
15735761 11 Jun 2016 18:12

For the time being I have to wait for the commission from TAURON which will estimate the losses, and there is quite a lot of it, all white goods, washing machine dishwasher cooker
#6 15735792 11 Jun 2016 18:29

Zbych034 Zbych034

Level 39

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Post #6
15735792 11 Jun 2016 18:29

Wait for the commission, then you will see what is worth doing. Most often they will reimburse the cost of repair or replacement if it can't be repaired. You will need a VAT invoice for reimbursement. Your fault looks simple and the faulty component is probably a varistor. The purpose of the varistor is to protect the equipment from surges.
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#7 15737027 12 Jun 2016 11:04

stefan1908 stefan1908

Level 10

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Post #7
15737027 12 Jun 2016 11:04

But what kind of varistor could be there because you can't read anything from the old one, the only thing is that it is blue in colour. One more thing, what are the symptoms of a tripped varistor, because now my fuse in the controller blows all the time
#8 15737043 12 Jun 2016 11:10

niewolno2 niewolno2

Level 40

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Post #8
15737043 12 Jun 2016 11:10

https://pl.wikipedia.org/wiki/Warystor
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#9 15737641 12 Jun 2016 15:22

domsat domsat

Level 21

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Post #9
15737641 12 Jun 2016 15:22

Almost certainly a S20K275 varistor, blue with a diameter of 20mm. It costs about £2.
#10 15804613 13 Jul 2016 11:18

stefan1908 stefan1908

Level 10
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Post #10
15804613 13 Jul 2016 11:18

Hello, I finally managed to find the values of this varistor. It is a ZOV 14D 431K,(you can see when you zoom in) but I can't find one anywhere.What replacement could I give

Attachments:

20160715_194428.jpg Download (2.34 MB)
#11 15824924 23 Jul 2016 10:28

leotdipl leotdipl

Level 23

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Post #11
15824924 23 Jul 2016 10:28

stefan1908 wrote:
Hello, I finally managed to find the values of this varistor. It is a ZOV 14D 431K,(you can see when you zoom in) but I can't find one anywhere.What replacement could I give

reverence,

colleague @domsat has already written to you. However, I suggest a small correction.
Instead of S20K275 ===> S14K275 (lower power, i.e. 0.6W) and
therefore the S14K275 exactly fits as a replacement for yours.
#12 15825090 23 Jul 2016 12:03

stefan1908 stefan1908

Level 10

» | Topic author Helpful post? (0)

Post #12
15825090 23 Jul 2016 12:03

Thanks, That's the one I used that my colleague domsat suggested, because I couldn't find the smaller one, the most important thing is that everything works nicely. Many thanks to colleagues who helped me solve the problem
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What capacitor for the gate controller after a power surge?

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