Ask Experts Questions for FREE Help !
Ask
    blackcherrymustang's Avatar
    blackcherrymustang Posts: 2, Reputation: 1
    New Member
     
    #1

    Nov 10, 2005, 10:00 PM
    No auto fan
    My furnace has a problem. The fan will not come on in the auto position.the t-stat doesn't have any fan controls on it. The limit switches both have continuity through them. I let the burner run for a long time and nothing. If I turn the fan to on,so it runs all the time, no heat comes from the ducts. Any help would be very appreciated. Sorry I don't know the name of the furnace. All the controls are inside the furnace. It is in a mobile home. Thanks
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member
     
    #2

    Nov 11, 2005, 04:58 AM
    Most furnaces use a separate relay and a slower speed for heat than for fan only. Since the fan switch is not at the thermostat, it must bypass the thermostat in the fan position preventing you from getting heat that way. Unfortunately on modern furnaces the troublesome relays are on a circuit board with all the other controls. The whole board is expensive, and the relay is difficult to identify as the problem and replace just it. You will have to go to a dealer for the furnace to buy the board.
    blackcherrymustang's Avatar
    blackcherrymustang Posts: 2, Reputation: 1
    New Member
     
    #3

    Nov 11, 2005, 09:05 AM
    No blower fan
    Thanks for the info. Maybe a new furnace would be better.

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!

How to make fan run auto [ 6 Answers ]

Hello, I have been trying to browse the website, trying to find out how to wire my t-stat so that it will run on auto.. I have 24v transformer, red, and white, and I connected it to the back of my t-stat, the fan turns on only when it turn the t-stat switch to heat no auto or on function. however...

Auto Accident In Ny [ 4 Answers ]

Scenario: Woman takes prescription medicine before driving. She later dozes off at the wheel and wrecks rental car. She admits to the cop she fell asleep.She is not charged with driving while impaired and goes and seeks medical care from her doctor for her injuries. She has now been told the...

Auto exe. Cd's [ 1 Answers ]

Is there any way to make an auto exe. Cd's start faster?

Auto Installing [ 2 Answers ]

Is there any way to stop Windows XP from automatically installing hardware?


View more questions Search