Coldbreak Brewing HERMS Giveaway!

HomeBrewSupply AMCYL Brew Kettle Giveaway!


Home Brew Forums > Home Brewing Beer > Electric Brewing > Strange issue with 240v legs. 120v on both, no 240v
Reply
 
Thread Tools
Old 12-02-2010, 06:52 PM   #1
Brewmoor
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Brewmoor's Avatar
Recipes 
 
Join Date: Aug 2009
Location: Colorado
Posts: 1,095
Liked 15 Times on 15 Posts
Likes Given: 13

Default Strange issue with 240v legs. 120v on both, no 240v

So I am brewing today and on both of my boil kettles one of the elements are not working. When I test the relays I have 120v on each leg but when I measure across both legs I get weird readings of 7-20v. If I turn the relays off I get 240v across the legs but, turn on the relay again and I get the strange readings.

I have two 60amp circuits feeding each boil kettles. I have 3 element in each kettle. This seems to be a new issue. My last 6 brews everything worked fine.

Any suggestions?


__________________
"What the mind can conceive and believe, the mind can achieve."

My build thread. Compact Single Tier!
Brewmoor is offline
 
Reply With Quote
Old 12-02-2010, 06:55 PM   #2
IrregularPulse
Hobby Collector
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
IrregularPulse's Avatar
Recipes 
 
Join Date: Nov 2007
Posts: 46,342
Liked 3004 Times on 2911 Posts
Likes Given: 148

Default

What are your elements? Watt and voltage?

disconnect the elements from the relays and take an ohm reading across the element. What do you have. I know it sounds weird to lose two elements at the same time, but weirder things have happened in the wonderful world of electronics.


__________________
Tap Room Hobo

I should have stuck to four fingers in Vegas. :o - marubozo's mom
IrregularPulse is offline
 
Reply With Quote
Old 12-02-2010, 07:08 PM   #3
Brewmoor
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Brewmoor's Avatar
Recipes 
 
Join Date: Aug 2009
Location: Colorado
Posts: 1,095
Liked 15 Times on 15 Posts
Likes Given: 13

Default

Elements are 4500w 240v. The elements all test out as working.
__________________
"What the mind can conceive and believe, the mind can achieve."

My build thread. Compact Single Tier!
Brewmoor is offline
 
Reply With Quote
Old 12-02-2010, 07:16 PM   #4
Brewmoor
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Brewmoor's Avatar
Recipes 
 
Join Date: Aug 2009
Location: Colorado
Posts: 1,095
Liked 15 Times on 15 Posts
Likes Given: 13

Default

Ok problem solved. I was not thorough enough in my testing. I had two blown fuses.

The weird thing was I was getting voltage across the the fuses. So i just assumed they were ok. I did not test the ohms across them. Sure enough they were dead. All is well all my elements are firing.

Thank you.
__________________
"What the mind can conceive and believe, the mind can achieve."

My build thread. Compact Single Tier!
Brewmoor is offline
 
Reply With Quote
Old 12-02-2010, 07:17 PM   #5
IrregularPulse
Hobby Collector
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
IrregularPulse's Avatar
Recipes 
 
Join Date: Nov 2007
Posts: 46,342
Liked 3004 Times on 2911 Posts
Likes Given: 148

Default

Fuses should always be removed from the circuit and tested alone with an ohm reading or continuity check.
__________________
Tap Room Hobo

I should have stuck to four fingers in Vegas. :o - marubozo's mom
IrregularPulse is offline
 
Reply With Quote
Old 12-03-2010, 07:15 PM   #6
evanmars
EAC Wannabe
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
evanmars's Avatar
Recipes 
 
Join Date: Dec 2006
Location: Springport, Michigan
Posts: 940
Liked 58 Times on 38 Posts
Likes Given: 11

Default

If you get avoltage reading across a single fuse, it is blown. There will be no voltage differential across a good fuse.


__________________
Consistency is only a virtue if you're not a screwup

Primary - Duck Lake EPA
Duck Pee (Cream of Three Crops variant)

Secondary - 0
Kegged - 0 No kegs anymore :(
Bottled - 0
evanmars is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Looking for a 2 pole Contactor, 30A, 120V Coil that is Din rail mountable Windsors Electric Brewing 21 01-02-2012 06:39 AM
Any 120V Setups for 10 Gal Batch? JJWP Electric Brewing 30 05-30-2011 11:17 PM
Type of wire for 5500w 240v element thomashp Electric Brewing 14 03-04-2011 11:35 PM
120v Switches CoalCracker Electric Brewing 7 10-15-2010 08:53 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS