Behringer EP4000 fan mod problem - Home Theater Forum and Systems - HomeTheaterShack.com
 
Thread Tools
post #1 of 8 Old 11-03-14, 04:59 AM Thread Starter
Shackster
Nigel
 
Join Date: Aug 2006
Location: Birmingham UK
Posts: 7
Behringer EP4000 fan mod problem

I have also posted this on another forum but, so far, I have not received a reply. I hope someone has experienced a similar problem and can advise me.
I recently modded my EP4000 and installed a quieter fan. I cut the existing wires and spliced in a new fan using a connector to tie the new fan wires to the existing wires in the amp. All worked well for a while until I had a short which disconnected the fan red wire where it is soldered on to the fan. I am not sure why it happened but I suspect (guess) that the wire was too tight and was physically pulled from the soldered connection. This tripped my mains power breaker, temporarily plunging me into darkness.
I took the lid off the amp and nothing seemed damaged or burnt except the red wire was no longer soldered to the fan. This wire looked slightly burnt. Rather than messing around with solder, I simply replaced the fan with a new one. However the new fan does not work. The amp itself is working, but the 24V power supply to the fan is not delivering any power. As I said, I cannot see any signs of damage. Is this something simple? Is there a fuse or breaker somewhere that I haven't seen? The fuses on the main power channels are both OK and the breaker on the back of the amp has not tripped.
Any help or advice would be appreciated.
nwhitta is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 11-03-14, 08:12 AM
HTS Senior Moderator
 
chrapladm's Avatar
Papi
 
Join Date: Jun 2009
Location: Adelaide, SA
Posts: 5,869
Re: Behringer EP4000 fan mod problem

Did you measure to see if your getting any voltage from the fan wires?

"Music is the space between the notes"
“[T]o talk well and eloquently is a very great art, but that an equally great one is to know the right moment to stop.”
chrapladm is offline  
post #3 of 8 Old 11-03-14, 09:11 AM Thread Starter
Shackster
Nigel
 
Join Date: Aug 2006
Location: Birmingham UK
Posts: 7
Re: Behringer EP4000 fan mod problem

No, I don't currently have anything measure with. I could touch the wires together and see if there is a spark, but I am reluctant to do that in case I damage something, or damage me.
The old fan was turning until it went pop, but now the new fan is not turning.
nwhitta is offline  
 
post #4 of 8 Old 11-03-14, 02:22 PM
Elite Shackster
 
lsiberian's Avatar
lsiberian
 
Join Date: Mar 2009
Location: Fort Worth, TX
Posts: 2,625
Re: Behringer EP4000 fan mod problem

You shouldn't be attempting to make repairs with a unit plugged in. You should have a multimeter to test components with if you plan to make electronics modifications. If you have power to the amps you should have power to the fan. I suspect you are missing a step in your attempts.
lsiberian is offline  
post #5 of 8 Old 11-03-14, 08:58 PM
HTS Senior Moderator
 
fusseli's Avatar
 
Join Date: May 2007
Location: Colorado, USA
Posts: 1,921
My System
Re: Behringer EP4000 fan mod problem

It sounds like the loose wire shorted out the amps power supply. Unless there's an obvious fuse it might not be easy to fix. Look for a fuse that is soldered onto the board somewhere?

Also, shorting wires to look for a spark is a horrible way to troubleshoot. Please don't ever do that! Use a DMM and be careful.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.
fusseli is offline  
post #6 of 8 Old 11-04-14, 02:36 AM Thread Starter
Shackster
Nigel
 
Join Date: Aug 2006
Location: Birmingham UK
Posts: 7
Re: Behringer EP4000 fan mod problem

Thanks for the response.
I will try and avoid electrocuting myself. The amp is still working, the main power amps still work on both channels. However there is no 24V supply available for the fan and so I am not using the amp in case it overheats without a fan. I think anything beyond replacing a fuse or reconnecting a fan is beyond my level of skill in electronics. It sounds like a job for the repair shop.
nwhitta is offline  
post #7 of 8 Old 11-04-14, 11:07 AM
Elite Shackster
 
lsiberian's Avatar
lsiberian
 
Join Date: Mar 2009
Location: Fort Worth, TX
Posts: 2,625
Re: Behringer EP4000 fan mod problem

Quote:
nwhitta wrote: View Post
Thanks for the response.
I will try and avoid electrocuting myself. The amp is still working, the main power amps still work on both channels. However there is no 24V supply available for the fan and so I am not using the amp in case it overheats without a fan. I think anything beyond replacing a fuse or reconnecting a fan is beyond my level of skill in electronics. It sounds like a job for the repair shop.
It sounds to me like you simply need to reconnect the fan properly. If a fuse was blown you wouldn't have power to the amps themselves. I suggest using some sort of connector instead of just soldering.
lsiberian is offline  
post #8 of 8 Old 11-26-14, 05:32 AM Thread Starter
Shackster
Nigel
 
Join Date: Aug 2006
Location: Birmingham UK
Posts: 7
Re: Behringer EP4000 fan mod problem

UPDATE: I took the EP4000 into a local repair shop. He advised me that the rectifier on the 24V board had blown. He replaced it for $50 and now everything is working well. What a great amp. The new super quiet fan is completely inaudible from more than 2ft away from the amp. A happy ending :-)
nwhitta is offline  
Reply

Bookmarks

Tags
behringer , ep4000 , fan , mod , problem

Quick Reply
Message:
Options

Register Now




PLEASE COMPLETE ALL REQUIRED FIELDS BELOW... THANKS!

REQUIRED FIELDS ON THIS PAGE
YOU MUST COMPLETE ALL OF THESE

Username
Password
Confirm Password
Email Address
Confirm Email Address
Random Question
Random Question #2




User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
PLEASE READ BELOW PRIOR TO ENTERING AN EMAIL ADDRESS!

ATTENTION!

YOU MUST ACTIVATE YOUR ACCOUNT!

Activation requires you reply to an email we will send you after you register... if you do not reply to this email, you will not be able to view certain areas of the forum or certain images... nor will you be able download software.

AN INVALID EMAIL ADDRESS WILL CAUSE YOUR ACCOUNT TO BE DELETED!

See our banned email list here: Banned Email List

We DO NOT respond to spamcop, boxtrapper and spamblocker emails... please add @hometheatershack DOT com to your whitelist prior to registering or you will get nowhere on your registration.


Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 is not allowed!
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


For the best viewing experience please update your browser to Google Chrome