Furnace Blower always on


  #1  
Old 04-13-09, 06:32 PM
J
Member
Thread Starter
Join Date: Apr 2009
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Furnace Blower always on

My house furnace blower is always on even when the thermostat is off or when it is on automatic. We had a technician come to look for the problem and he said that the problem is the coil of the air conditioning. I would like to know if that could be a cause of the blower not turning off or if it is something else. I'm not sure if this would help but the model is GUJ100D12-1A and the company is Armstrong air conditioning Inc. Any other reasons would be appreciated
Thank You
 
  #2  
Old 04-13-09, 07:51 PM
Grady's Avatar
Forum Topic Moderator
Join Date: Jan 2005
Location: Delaware, The First State
Posts: 12,682
Received 41 Upvotes on 39 Posts
Blower always on

If this is a new problem, I would suspect a stuck fan relay.
 
  #3  
Old 04-14-09, 05:11 AM
P
Temporarily Suspended
Join Date: Jul 2008
Location: NY
Posts: 10,265
Upvotes: 0
Received 0 Upvotes on 0 Posts
Did the tech disconnect the thermostat completely to determine that? Is there a control board?
 
  #4  
Old 04-14-09, 12:42 PM
dun11's Avatar
Member
Join Date: Feb 2009
Location: Local
Posts: 753
Upvotes: 0
Received 1 Upvote on 1 Post
Try to be alittle more specific, did the tech just say "its the A/C coil " if he did, get your $ back. What did he propose to do to fix the problem?
 
  #5  
Old 04-20-09, 05:18 PM
V
Member
Join Date: Apr 2009
Location: usa
Posts: 3
Upvotes: 0
Received 0 Upvotes on 0 Posts
Blower stays on

Several things may cause the blower to continue to operate.
Here's a few to consider!
(1) Insufficient air flow over the heat exchanger.
(2) A dirty AC coil will restrick air flow. Did you run the
appliance without a filter?
(3) Pleted filters cause an additional pressure drop and
restricks air flow. Are you using the expensive 3m type?
(4) Insufficient return air back to the appliance.
(blocked by rugs & furniture)
(5) To many supply registers closed off.
(6) Fan control stuck in closed position
(old style may need adjustment)
(7) Wiring error low voltage circuit
(8) Stuck fan relay / relay on circuit board
(9) Insufficient duct design
 
 

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