Question about Dayton Gas Furnace Heater

1 Answer

Dayton blower fan repeatedly kicks on and off

Hi folks.

I've got a Dayton gas furnace.
Model # FG8D12520MU12A.

The fan kicks on... runs for a bit and then kicks off.
This pattern repeats.

When I run with the heat on, I get a fan-limit switch error code on the
control board.

When I run it in fan-only mode, the fan kicks on for about a minute or lses, then keeps cycling... kicks off ..... kicks on for a few seconds.... kicks off...

Any suggestions regarding this problem?

thanks in advance

Posted by wayneminer on

  • 1 more comment 
  • Anonymous Jan 07, 2009

    My Dayton furnace fan will constantly kick on and off on and off. on for 10 off for 5 on for 10 off for 5.

  • sasyko Jan 18, 2009

    where is the fan limit switch? mine is doing the same thing..

  • Anonymous Jan 19, 2009

    I have the exact same problem on a Dayton model 3E837 but can't find a replacement part for the limit switch

×

Ad

1 Answer

Paul Carew

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Dayton Master
  • 3,534 Answers

Chech the air filter is clean and the fan limit switch look to change fan limit

Posted on Dec 11, 2008

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

Trouble shoot Dayton gas furnace model GG9S100C16MP11A fan is left on constant but in cold weather 10 or colder fan will go off and furnace will go thru a restart mode and run fine for awhile then will do...


Do not run contentiously during heat mode. the fan runs at a slower speed with heat and heat fires first then the fan cycles on during heat cycle then when heat satisfies the thermostat the heat will cycle off and fan will run for a couple more minutes and then cycle off. So set stat on fan cycle to auto.

Feb 03, 2015 | Dayton Gas Furnace Heater

1 Answer

Furnace fan runs costantly


Check to see if fan setting is summer or winter.

Feb 05, 2012 | Dayton Gas Furnace Heater

1 Answer

Dayton gas furnace model 3e385 works and lights but as soon as fan comes on the unit shuts off and lights again wondering what was wrong


Check heat exchanger for cracks or holes which will cause the fan to blow out the flames. The flame sensor on the pilot or burners has to be in constant contact with flame to operate normally. If the flame is put out by a cracked exchanger the exchanger or furnace needs to be replaced.

Nov 22, 2011 | Dayton Gas Furnace Heater

1 Answer

Furnace will kick on, begin heat up, go to the point where the fan should start and the whole thing shut down. If I move the thermostat down below the temp it show, it will start again and do the same...


Hi,

Sounds like the blower motor is bad and then the unit is kicking off on high limit....

Probably nothing you can do with out getting a new motor to replace the bad one...

heatman101

Feb 02, 2011 | Dayton Gas Furnace Heater

1 Answer

The pole buiding 24 in hanging Dayton sometimes the blower comes on like after 5 minutes after everything else kicks in and sometimes like when its supposed to and sometimes not at all?? All the electric...


I'm not sure whether this is a gas unit or not. With many gas heaters, the blower comes on when the heat exchanger gets hot enough and goes off once the heat exchanger cools. Other things are happening before the blower goes on. The blower is normally controlled by a "fan control thermostat". This stat actuates the blower when the furnace is hot enough so that cold air is not being blown around and allows the blower to run until the furnace cools enough to get out the remaining heat after the flame shuts off but not so long to again allow cool air to blow around. If this fan control is malfunctioning, you will get erratic runs from the blower or the blower may not run at all or run long or continuously. The fan control is the first thing to check.
Gary

Jan 31, 2011 | Dayton Gas Furnace Heater

1 Answer

I have a dayton hanging furnace that after a few minutes the fan stops and burner keeps burning then a few minutes later the fan starts again and keeps repeating this cycle. model 3E845. thanks.


On the side of the heat exchanger is a fan Klixon that turns that motor on when the temp exceed 110f on the side of the heater. maybe that thang is going out or your fan motor needs oiling and is cutting out on overload. Next to the fan klixon is usually a limit. Both look the same. The fan klixon will have a marking stamped into the metal such as F-120 the limit will have L-240.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

Dec 28, 2010 | Dayton Gas Furnace Heater

1 Answer

My furnace kicks on, runs a little while, kicks off, then kicks on again until desired temperature is reached


it could be the thermostat on the wall not working or the fan control is not working as it should also check to see if air filter is blocked

Oct 24, 2010 | Dayton Gas Furnace Heater

1 Answer

We have a dayton gas furnace model #3E463A. thought the control box was gone. got new one we furnace starts up the power goes on, fan starts no green pulsing light on control no ignition


When your furnace starts...the Ventor motor(exhaust fan) starts up....within a short time (seconds) the Pressure switch closes proving that the Fan is indeed running and the vent is not blocked...if this doesnt happen the furnace will not poweer the ignitor or fire at all....Check the vent pipe outside and look for obstructions or dirt on the screen inside the pipe...the condensate from the fuirnace may not be draining at all...due to plugged condensate drain lines...find this tube coming out of the furnace front...bottom of upper compartment usually , and pull it off the tap....if water starts coming out then your drain is plugged downstream of the furnace.

Oct 25, 2009 | Dayton Gas Furnace Heater

1 Answer

Fan continues to run after heating


That's the fan switch. It's a thermostat that controls the fan coming on and off, it's probably failed and needs to be replaced. You can see it if you take the front off the furnace, the wires come off it and go to the fan motor.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Jul 13, 2009 | Dayton Gas Furnace Heater

Not finding what you are looking for?
Dayton Gas Furnace Heater Logo

Related Topics:

992 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dayton Heating & Cooling Experts

Paul Carew

Level 3 Expert

3534 Answers

Brad Brown

Level 3 Expert

18596 Answers

Lee Hodgson
Lee Hodgson

Level 3 Expert

4810 Answers

Are you a Dayton Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...