short in unattached garage

Reply

  #1  
Old 10-31-09, 01:57 PM
A
Member
Thread Starter
Join Date: Oct 2009
Location: ca
Posts: 4
Received 0 Votes on 0 Posts
short in unattached garage

doing laundry in unattached garage last week in rain. heard pop from 20amp fuse box in garage. but everything worked, garage door closed. next day could not open garage. touched garage got shocked. turned off breaker from house panel. open garage by man release, nothing works: lights, sprinkler panel, wash/dryer. turned breaker back on, touched washer, got shocked.
two 20 amp fuse box very old in garage with old wiring int it. the crossbar is in up position in two copper attachments. do i replace the 20 amp fuses, is there a short somewhere before the fuse box in garage?
 
Sponsored Links
  #2  
Old 10-31-09, 02:35 PM
A
Member
Join Date: Oct 2005
Location: Milwaukee WI
Posts: 1,339
Received 0 Votes on 0 Posts
Originally Posted by Alexander1_4 View Post
doing laundry in unattached garage

touched garage got shocked

turned off breaker from house panel

two 20 amp fuse box very old in garage with old wiring int it.
Is the dryer electric or gas?

What did you touch on the garage?

Was the breaker that you shut off in the house actually two handles tied together, 240V? Or just a single handle, 120V?

How many wires in the cable or conduit between house and garage? Can you describe them in terms of size & color?
 
  #3  
Old 10-31-09, 02:44 PM
A
Member
Thread Starter
Join Date: Oct 2009
Location: ca
Posts: 4
Received 0 Votes on 0 Posts
thanks for reply. just touched garage door as was putting in man release key, got shocked. garage door is vinyl with metal trim. dryer is gas. circut breaker on house panel to turn off elect to garage is 120v.
 
  #4  
Old 10-31-09, 03:00 PM
A
Member
Thread Starter
Join Date: Oct 2009
Location: ca
Posts: 4
Received 0 Votes on 0 Posts
garage is vinyl with metal frame. touched garage to look in window before placing man release key in. had to back away and go to house panel. cir breaker to garage is 120v. all off now. dryer is gas. everything has worked for yrs. but looking at amp box in garage is is very very old. old braiding over wires. old box with crossbar and handle on outside to move up to placement in metal "teeth" and down to the 2 20 amp fuses. two wires coming out of conduit into this box, white and green, tied together with plastic yellow hat.
 
  #5  
Old 10-31-09, 03:28 PM
ray2047's Avatar
Member
Join Date: Mar 2006
Location: USA
Posts: 33,597
Received 13 Votes on 11 Posts
two wires coming out of conduit into this box, white and green, tied together with plastic yellow hat.
Is this an underground conduit from the house? Are you saying you only have a white and green going to the box from the house? Can you post a picture of the inside of the box?
 
  #6  
Old 10-31-09, 03:33 PM
A
Member
Join Date: Oct 2005
Location: Milwaukee WI
Posts: 1,339
Received 0 Votes on 0 Posts
Originally Posted by Alexander1_4 View Post
cir breaker to garage is 120v.

old box with crossbar and handle on outside to move up to placement in metal "teeth" and down to the 2 20 amp fuses.

two wires coming out of conduit into this box, white and green, tied together with plastic yellow hat.
If white and green are tied together, that does not sound good.

Is it possible it was "creatively" wired to use ground for return to the house and the white or green wire went open?

Then there's the issue of having 2-20A fuses in the garage and 1-20A circuit breaker in the house. Photos would help. I would suspect that the 20A fuses are being fed from two separate breakers in the house that are NOT tied together. Is it possible that another circuit breaker blew and the other one is backfeeding it?

For a better diagnosis, post some photos or more specifics on the wiring. It would pretty unusual to be able to get 120V over a green and a white wire that are wirenutted together.
 
  #7  
Old 10-31-09, 03:51 PM
A
Member
Thread Starter
Join Date: Oct 2009
Location: ca
Posts: 4
Received 0 Votes on 0 Posts
i see two conduits going into box. only one has green/white wires visible. other conduit is totally enclosed in black casing very old. again box is very old will have electrician come to house monday am. braiding on wires old frayed, nothing new except green/white conduit coming down to left side of box. all circut breakers on panel in house in position. none tripped. only pop heard at this amp box in garage. again had to shut off 120v breaker to garage to prevent shocking. there does not seem to be any other convience breaker to garage from house as no shock when just this one 120v breaker is shut off. hopefully just short in this old box and not shorting in conduits underground. thanks for your repies.
 
  #8  
Old 10-31-09, 04:16 PM
ray2047's Avatar
Member
Join Date: Mar 2006
Location: USA
Posts: 33,597
Received 13 Votes on 11 Posts
The box can be discarded if all you have is a 120v line to the garage. Al you need is a simple switch where the line from the house enters the garage. It is hard to follow your terminology so perhaps best you get an electrician. Let us know what he said the problem is and what he does.
 
Reply
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: