Furnace clicking when off


  #1  
Old 06-03-13, 07:21 PM
G
Member
Thread Starter
Join Date: Jun 2013
Posts: 3
Upvotes: 0
Received 0 Upvotes on 0 Posts
Furnace clicking when off

Hi,
I have had my furnace turned off the last couple days (no heat or AC), however, every hour or so I hear this fairly loud click from my furnace, but nothing happens. It worries me and I don't think its normal. Is there any reason why a furnace would make clicking sounds when turned off?

Thanks
 
  #2  
Old 06-03-13, 07:44 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,100
Received 3,983 Upvotes on 3,575 Posts
Welcome to the forums.

How did you turn it off.......off at the thermostat ?

Do you have an electronic air cleaner ?
 
  #3  
Old 06-04-13, 05:03 PM
G
Member
Thread Starter
Join Date: Jun 2013
Posts: 3
Upvotes: 0
Received 0 Upvotes on 0 Posts
Hi, yes I turned it off with the thermostat. Not sure what an electric cleaner is?
 
  #4  
Old 06-04-13, 07:25 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,100
Received 3,983 Upvotes on 3,575 Posts
An electronic air cleaner uses electricity to trap the dust on a charged grid. It would be mounted in the ductwork right next to the furnace. It would have a power switch with a red light.

Does your furnace use regular replaceable fiberglass filters ?

If yes....then you are going to have to do some detective work to find what is clicking. Maybe you can isolate the noise in or around the furnace.
 
  #5  
Old 06-12-13, 04:58 PM
G
Member
Thread Starter
Join Date: Jun 2013
Posts: 3
Upvotes: 0
Received 0 Upvotes on 0 Posts
I do have replacable filters. Is it normal for the electric air cleaners to click? And how often do they attempt to trap the dust?

As for the noise itself it almost sounds like a loud tap against metal. Haven't determined yet where exactly it's coming from, but am trying to.

What do you suggest my next steps should be?
 
  #6  
Old 06-13-13, 02:58 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,100
Received 3,983 Upvotes on 3,575 Posts
If you have replaceable filters then you don't have an electronic air cleaner which is not replaced but cleaned instead. Electronic air cleaners use high voltage on a wire grid to charge the dust and a metal plate system that the dust sticks to. Large dust particles can cause a short on the plates making a sparking sound.

I don't really have any further info. You need to follow the sound.
 
 

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