Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting Game Consoles & Other Weird Devices
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 09-13-2021, 02:40 AM   #1
schnauzer2021
New Member
 
Join Date: Sep 2021
City & State: Singapore
My Country: Singapore
I'm a: Knowledge Seeker
Posts: 4
Default Chasis bond to neutral to overcome oven tripping problem

Hi,

I have a 6 years old Rowenta table top oven. The oven have both convection and grill function.
Last Christmas I used it to roast a turkey with the convection mode for about 4 hours without any problem. When I switched to grill mode to deep browning the turkey for the final half hour, the power trips after a while.

I have not been using the oven since then. Last week, when I try to use the oven again, both convection and grill mode trip the power supply a few minutes after turning it on.

As I was too busy with my work, I leave it to the repairman rather then Googling for solution and do the repair myself.

After a few minute into repair, he solved the problem. The oven can be use in all mode without tripping. I grilled my pizza for lunch.

Then it come to my thought what have the repairman done to stop the oven from tripping the power supply? Could it be that he removed the grounding of the chasis? I called him

He said the chasis is now bonded to neutral, rather then ground. So if there is current leakage, it will trip the power supply too.

Further thought, I asked what if there is a swapped in the power plug between the live and neutral or there is an error connection in the wall supply, then would the chasis be electrify with live ? He said yes!!

Is this code of practice by "grounding" the chasis to neutral acceptable?

I think there is a very high risk to take if there is swap in the polarity either at the wall supply or the extension plug or even the oven plug itself.
schnauzer2021 is offline   Reply With Quote
Old 09-13-2021, 02:50 AM   #2
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 25,393
Default Re: Chasis bond to neutral to overcome oven tripping problem

it's dangerous and also typical of the type of bs that goes on in some asian countries.
like using those shower heads with built in heaters that just pass electricity through the water - over your head!
stj is offline   Reply With Quote
Old 09-13-2021, 03:34 AM   #3
Th3_uN1Qu3
Believe in
 
Join Date: Jul 2010
City & State: Bucharest
My Country: Romania
Line Voltage: 230VAC 50Hz
I'm a: Professional Tech
Posts: 5,563
Default Re: Chasis bond to neutral to overcome oven tripping problem

Neutral should only bond to earth at the main panel and indeed, tying the chassis of a metallic appliance to neutral is very naughty and dangerous. You should look into getting a new oven soon.
__________________
Quote:
Originally Posted by PeteS in CA View Post
Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
A working TV? How boring!
Th3_uN1Qu3 is offline   Reply With Quote
Old 09-13-2021, 04:52 AM   #4
CapLeaker
Leaking Member
 
CapLeaker's Avatar
 
Join Date: Dec 2014
City & State: Atlantic Canada
My Country: Canada
Line Voltage: Ground, 0Hz
I'm a: Hobbyist Tech
Posts: 4,820
Default Re: Chasis bond to neutral to overcome oven tripping problem

maybe that works over there... over here that repair isn't any good.
CapLeaker is offline   Reply With Quote
Old 09-13-2021, 09:51 AM   #5
Per Hansson
Super Moderator
 
Per Hansson's Avatar
 
Join Date: Jul 2005
City & State: ----
My Country: Sweden
Line Voltage: 230v 50Hz
I'm a: Knowledge Seeker
Posts: 4,842
Default Re: Chasis bond to neutral to overcome oven tripping problem

In the west that "electrician" would go to jail or get an extreme fine if that appliance hurt somebody after that "fix"
But very good on you for asking the right questions, 99.9% of people would have no clue...

Here is a similar thread but with some ideas you could borrow to try to repair it more properly.
I would just recommend to buy a new one though, unless it is very expensive.

https://www.badcaps.net/forum/showthread.php?t=84293
__________________
"The one who says it cannot be done should never interrupt the one who is doing it."
Per Hansson is offline   Reply With Quote
Old 09-13-2021, 10:26 AM   #6
eccerr0r
Solder Sloth
 
eccerr0r's Avatar
 
Join Date: Nov 2012
City & State: CO
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 6,383
Default Re: Chasis bond to neutral to overcome oven tripping problem

With Singapore's strict laws I'm surprised there isn't one to stop someone from doing this too...
eccerr0r is offline   Reply With Quote
Old 09-13-2021, 10:54 AM   #7
petehall347
Badcaps Veteran
 
Join Date: Jan 2015
City & State: worcester
My Country: United Kingdom
I'm a: Knowledge Seeker
Posts: 2,988
Default Re: Chasis bond to neutral to overcome oven tripping problem

i soon found this article ... https://www.fixwerks.com/the-beginne...s-and-repairs/
petehall347 is offline   Reply With Quote
Old 09-13-2021, 08:13 PM   #8
schnauzer2021
New Member
 
Join Date: Sep 2021
City & State: Singapore
My Country: Singapore
I'm a: Knowledge Seeker
Posts: 4
Default Re: Chasis bond to neutral to overcome oven tripping problem

Quote:
Originally Posted by eccerr0r View Post
With Singapore's strict laws I'm surprised there isn't one to stop someone from doing this too...
They can't catch everyone without anyone reporting
schnauzer2021 is offline   Reply With Quote
Old 09-13-2021, 08:15 PM   #9
schnauzer2021
New Member
 
Join Date: Sep 2021
City & State: Singapore
My Country: Singapore
I'm a: Knowledge Seeker
Posts: 4
Default Re: Chasis bond to neutral to overcome oven tripping problem

Quote:
Originally Posted by Per Hansson View Post
In the west that "electrician" would go to jail or get an extreme fine if that appliance hurt somebody after that "fix"
But very good on you for asking the right questions, 99.9% of people would have no clue...

Here is a similar thread but with some ideas you could borrow to try to repair it more properly.
I would just recommend to buy a new one though, unless it is very expensive.

https://www.badcaps.net/forum/showthread.php?t=84293
Trying to pull a fast one, as long as it works, the ignorant one will accept it, without knowing the high risk they are taking
schnauzer2021 is offline   Reply With Quote
Old 09-14-2021, 10:12 AM   #10
CapLeaker
Leaking Member
 
CapLeaker's Avatar
 
Join Date: Dec 2014
City & State: Atlantic Canada
My Country: Canada
Line Voltage: Ground, 0Hz
I'm a: Hobbyist Tech
Posts: 4,820
Default Re: Chasis bond to neutral to overcome oven tripping problem

Quote:
Originally Posted by schnauzer2021 View Post
They can't catch everyone without anyone reporting
Sorry, if I sound rude... but then it is a neglect on your part of not doing so and you are willing to take the risk. Period. In my case I love my kids or any one else in my residence more than carry that kind of risk. That is only my opinion... do what you want... just don't complain later. After all these safety devices are there for a reason.
CapLeaker is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2021
Powered by vBulletin ®
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 01:54 PM.
Did you find this forum helpful?