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My blower fan won't shut off it runs continuously

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Your unit is in a fault mode and you need a tech to check it out.It goes into this mode because of carbon monoxide and the danger it can be if one of the components fails.

Posted on Oct 06, 2009

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3 Answers

I have new blower motor. it dosen't stop running


Could be a bad blower motor resistor,mounted by the blower.

Sep 28, 2016 | 2002 Dodge Ram Pickup 1500

1 Answer

Heil furnace blower motor stays on won't shut off at thermostat blows cold air continuously


Do you have t sat fan switch in on position??? If so blower will run continously set it to auto and it will cycle with heat call

Nov 12, 2012 | Heating & Cooling

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My 2005 yukon has no ac blower fan control


check the resister next to the blower motor they burn out

Sep 25, 2012 | 2005 GMC Yukon

1 Answer

Heater won't go off


Hi,

If you're referring to the heater "FAN" running continuously, then its likely to be your blower motor resistor.

The heater blower motor (under the dash) has constant power supplied from the battery, but is controlled by the blower "resistor" - usually mounted on the blower motor assembly. If one or more of the blower resistor coil wires are faulty, the motor will either not work on one of the fan settings, or will constantly run by itself.

Jun 08, 2011 | 1984 Mercury Grand Marquis

1 Answer

Furnace fires up and heats to desired heat setting and burner shuts down , but the main blower continues to run on.


its the fan control AFC not shutting off , it comes on at temp rise say 150f drops back to 130f with fan on , burner shuts off fan runs untill temp falls to 100f the fan shuts off in this case it keeps running

Nov 13, 2010 | Dayton Gas Furnace Heater

1 Answer

We have a White-Rodgers 1F80-51. The fan blows


Usually when the furnace blower motor runs all the time
The limit switch or rollout switch is usually open or bad.
The furnace board is seeing that one of those switches is open, so it brings the blower on to try to get the heat out of the combustion chamber area, so the switch will close. But if the switch is bad and won’t close, the furnace board will keep the blower running continuously.

May 31, 2010 | Heating & Cooling

1 Answer

The blower fan does not shut off when it reaches the set temperature. Compressor shuts off but fan continues to run making the air inside very humid. Temperature is getting cold.


First, forgive me, but I have to throw the obvious out there......make sure the fan switch is in AUTO and not ON.
If the blower will not stop operating unless the main supply feed is shut off, you have a stuck blower relay that will need to be replaced.

Apr 26, 2010 | Heating & Cooling

1 Answer

The fan runs all the time.


Disconnect your thermostat from the wall. If the fan shuts off then you probably have a bad or miswired thermostat.
If it continues to run, disconnect the thermostat wires from the furnace. If this shuts the fan off then you have a problem with the thermostat wires.
If the fan continues to run with the thermostat wires off of the furnace,
then you have a problem with the furnace.
Even though the fan stays on...... does the furnace still work? If so I bet you have a bad or stuck blower relay. If the furnace does not function other than the blower than you most likely have a safety control that is open. Worst case you could have a bad circuit board.
Good luck.....

Apr 10, 2009 | Honeywell Electronic Programmable...

2 Answers

Goodman a/c blower fan will not shut off


Unhook the thermostat wires on the furnace. If the blower shuts off then your problem is either the thermostat or the thermostat wires. If it contiues to run check you high limit switches next. If all else fails you most likely have a bad blower relay. On most modern furnaces the blower relay is part of the circuit board.
Good luck

Mar 29, 2009 | Goodman CLQ36AR49 Air Conditioner

1 Answer

Fan continues to run after heater is shut off


sounds like a faulty blower motor resistor.

Feb 06, 2009 | 2003 Chrysler Town & Country

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