Ask Experts Questions for FREE Help !
Ask
    rkwhittick's Avatar
    rkwhittick Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Nov 13, 2009, 11:39 AM
    Furnace Fan Runs Continually and Randomly
    Chronological Sequence of Events
    1.Programmable Thermostat installed in 2007, and was working as programmed
    2.New Brock Furnace installed in April of 2009.
    3.Furnace has run randomly as if it has a mind of its own, since the installation
    4.Sometimes the air is heated and sometimes not
    5.Service specialist says this is normal, has made some adjustments, but nothing has been resolved.
    5.Would the problem be corrected if a simple Heat/Cold manual thermostat was installed?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 13, 2009, 03:19 PM
    Usually it is the thermostat or a intermitent short in the thermostat wiring that is the problem. Now if it is just the air move/blower fan that is causing the problem an adjustment to the fan and limit control or fan control itself could be the problem. It could also be the adjustment for heat anticipation in the thermostat if so equipped.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #3

    Nov 14, 2009, 09:13 AM
    The thermostat may have setup options that worked well with the previous furnace, but require adjustment for the new one.
    rkwhittick's Avatar
    rkwhittick Posts: 3, Reputation: 1
    New Member
    		  
    #4

    Nov 14, 2009, 10:19 AM
    Quote Originally Posted by hvac1000 View Post
    Usually it is the thermostat or a intermitent short in the thermostat wiring that is the problem. Now if it is just the air move/blower fan that is causing the problem an adjustment to the fan and limit control or fan control itself could be the problem. It could also be the adjustment for heat anticipation in the thermostat if so equiped.
    Thank you for the assistance.
    Rkw
    rkwhittick's Avatar
    rkwhittick Posts: 3, Reputation: 1
    New Member
    		  
    #5

    Nov 14, 2009, 10:21 AM
    Quote Originally Posted by KC13 View Post
    The thermostat may have setup options that worked well with the previous furnace, but require adjustment for the new one.
    Thank you for the assistance.
    Rkw
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Wire HRV to control Furnace Fan [ 7 Answers ]

I have recently installed a Venmar HRV. The control panel for this unit offers an Automatic setting where the unit will stop for 40 minutes and run for 20 minutes each hour. I would like to connect the HRV to my furnace so that it turns the furnace fan on for this 20 minute period. How can I...

6yr old Bryant furnace burner continually on-off-on-off [ 7 Answers ]

After the furnace heats to the desired setting of the thermostat the gas flow to the burner stops and starts every few seconds with the igniter also starting and stopping. Igniter is 2yrs. Old and won't last long operating like this.

Goodman furnace fan randomly kicks in [ 1 Answers ]

I have a goodman furnace model # GMP075-3, serial # 9310089194 The blower fan randomly comes on even though thermostat is set on off and fan is set on auto. 1- Please tell me what should I check? 2- Please tell me where is the location of fan limit control switch and what is it look like?...

Outide unit runs continually, but indoor unit will not always come on when it should. [ 7 Answers ]

For the past couple of months, my A/C has been working improperly, and I'm hoping that someone can tell me what's wrong, and how to fix it! Hot weather's ON THE WAY!! I don't know all of the correct terminology, but here goes: I have an electric central heat/air conditioner. The last couple...

View more questions Search