Blower Motor Constantly Running

newcomer08

What are some possible causes for the blower motor to continuesly keep running... I replaced the relay but that did not solve the problem..

snapperhead

take the stat off the wall with the subbase still wired.if the fan stops there is something in the stat that is calling it in...check the configuration if it has oneif it stays on head for the air handler.remount stat...down at the air handler pull the G wire off with it running if it stays on it is something within the air handler...if the G wire and the R wire are rubbing togeather any where between the stat and the air handler that will call the fan in...disconnecting the things above will isolate whats causing it to run.

#CARRIERMAN

Hi newcomer 08

Some of the manufacturers use the blower as a warning device as a loss of low voltage. Some of them wire through the limit circuit of the furnace. If its a Carrier, Bryant or Payne this could be the case. Need any more information if you give us a little more to work with, one of us can help you pinpoint it.

Good luck
Rusty

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FemaleAstarCO

Start jumping out your roll outs. Often it is your roll outs or snap switches.