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eetylerb · 8th October 2006, 09:38 PM

Can anyone tell me what type of component is in this picture?

My dishwasher stopped working and this looks like the only fried piece on the board, so I want to replace, but I need to know what to look/ask for.

It has a 50+ labeled toward the bottom of the circle.

Any help is appreciated.

dknguyen · 8th October 2006, 09:45 PM

It looks like a capacitor to me.

Hero999 · 8th October 2006, 09:57 PM

I think it's more likely to be a transient supressor; the ZNR on the silk screen indicates this.

eetylerb · 8th October 2006, 10:14 PM

This is the symbol for a thyristor surge suppressor device, the sybol on the original looks like this, except no line through the Z.

What about the 50+, is that the break over voltage?

**Nigel Goodwin** · 8th October 2006, 11:47 PM

It's fairly unlikely this is all that's wrong?, as suggested this is just a voltage transient supressor - you've perhaps had a large mains spike?.

eetylerb · 9th October 2006, 02:45 AM

There may have been a spike, I was doing some electical work and the main neutral accidentally got lifted causing everything in the house to loose reference to ground. After this is when I noticed it wasn't working, but can't say for sure that was when it happened.

danll21 · 17th October 2008, 04:45 AM

you may have sent 240 volts through your dishwasher. if your dishwasher and disposal are on separate circuits, they are probably sharing a neutral (that's how most kitchens are wired). if the neutral gets interrupted trying to get back to ground (like coming loose at the panel) then you actually have one 120 volt phase going through the dishwasher and one 120 volt phase going through your disposal and the neutral, rather than running back to ground, just runs those two phases together. so as soon as you turn on the switch for the disposal, you complete that circuit and send 240 volts through both appliances.

not that this helps you get your dishwasher going, just nice to know why something broke

crutschow · 17th October 2008, 06:01 AM

If the suppressor fried, than it may have open circuited and damaged some of the other circuits. If it shorted, then it could be pulling down the power. You can try removing the suppressor to see if the rest of the circuit still works. You don't need the suppressor for this test. If the circuit works then you can replace the suppressor. If not you have to look elsewhere for further failures.

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8th October 2006, 09:38 PM	#1
eetylerb	Circuit Board Help Can anyone tell me what type of component is in this picture? My dishwasher stopped working and this looks like the only fried piece on the board, so I want to replace, but I need to know what to look/ask for. It has a 50+ labeled toward the bottom of the circle. Any help is appreciated. Attached Thumbnails

8th October 2006, 09:45 PM	#2
dknguyen	It looks like a capacitor to me.

8th October 2006, 09:57 PM	#3
Hero999	I think it's more likely to be a transient supressor; the ZNR on the silk screen indicates this. __________________ I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong. Please ask on the open forum if you have a question and I'll be happy to help, if I know the answer.

8th October 2006, 10:14 PM	#4
eetylerb	This is the symbol for a thyristor surge suppressor device, the sybol on the original looks like this, except no line through the Z. What about the 50+, is that the break over voltage? Attached Images

8th October 2006, 11:47 PM	#5
Nigel Goodwin	It's fairly unlikely this is all that's wrong?, as suggested this is just a voltage transient supressor - you've perhaps had a large mains spike?. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

9th October 2006, 02:45 AM	#6
eetylerb	There may have been a spike, I was doing some electical work and the main neutral accidentally got lifted causing everything in the house to loose reference to ground. After this is when I noticed it wasn't working, but can't say for sure that was when it happened.

17th October 2008, 04:45 AM	#7
danll21	you may have sent 240 volts through your dishwasher. if your dishwasher and disposal are on separate circuits, they are probably sharing a neutral (that's how most kitchens are wired). if the neutral gets interrupted trying to get back to ground (like coming loose at the panel) then you actually have one 120 volt phase going through the dishwasher and one 120 volt phase going through your disposal and the neutral, rather than running back to ground, just runs those two phases together. so as soon as you turn on the switch for the disposal, you complete that circuit and send 240 volts through both appliances. not that this helps you get your dishwasher going, just nice to know why something broke

17th October 2008, 06:01 AM	#8
crutschow	If the suppressor fried, than it may have open circuited and damaged some of the other circuits. If it shorted, then it could be pulling down the power. You can try removing the suppressor to see if the rest of the circuit still works. You don't need the suppressor for this test. If the circuit works then you can replace the suppressor. If not you have to look elsewhere for further failures. __________________ Carl Curmudgeon Elektroniker