Question about Dayton (4LX41) Heater

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I have a Dayton model 4LX50 natural gas heater that seems to work right except when the burner shuts off the fan runs to long. It will run 15 to 20 minutes blowing cold air.

Posted by Anonymous on

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

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  • 579 Answers

SOURCE: Dayton 3E227A Heating Cycle

The sensor for the thermostat is probably going bad or has bad connections. It is (or thinks it is) heating up fast and therefore shuts of the heater.

Posted on Dec 31, 2007

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SOURCE: Dayton Fuel Trimmer is lame heater, need to adjust setting

runs for little bit and shuts off

Posted on Oct 02, 2008

  • 15 Answers

SOURCE: I have a Dayton 4LX55 tubular heater in my shop that won't light

Check your thermostat and see that it’s wired correctly, it should be as followed for this particular unit; R-W-G from the thermostat terminal, and R-W1-G on the units terminal strip. Also check and make sure you have gas to the unit and make sure the switch to the gas valve is in the “ON” position. If all of the above is correct and working, you could have a bad igniter, or a have a flame rollout, or high limit switch tripped.

Hope this helps

Posted on Dec 03, 2008

clyde2j2
  • 137 Answers

SOURCE: Dayton Furnace - Pilot Light Goes Out but Fan keeps running?

Pilot lighted furnaces have a thermocouple made from disasimilar metals that when heated create electricity to actuate a relay that alows the gas to flow to the furnace.

When the thermocouple gets coated with carbon from the pilot lights constant burning it acts as an insulator and keeps the thermocouple from getting enough heat to generate electricity, a very good safety factor.

What you have to do is locate the thermocouple it should be located over the pilot light, you will see a gray substance around the thermocouple it will be hard like cement, take a knife and scrape away as much of the gray material as possible then sand the themocouple with a medium sandpaper until it shines, use one of you wifes emery boards, this should solve your problem.

Posted on Feb 24, 2009

roniecon
  • 6826 Answers

SOURCE: Can the Dayton model 3e368e be converted to use

If you know a dealer or repair company,they can order orifices to change out in the unit.

Posted on Oct 17, 2009

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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

Hi, I have a Dayton 3ug73 heater. The heater will not shut down after the initial heat requirement is met. I have the thermostat set on low but it continues to heat. I shut the power off to it to keep...


It sounds to me like your thermostat may be bad. I would check power incoming to t-stat then turn temp. setting up and down to see if it is switching on and off. If not then replace. If it does then I would check all wiring to gas valve and if power is shutting off to valve but burner continues then replace gas valve. Thank you.

Mar 07, 2011 | Dayton (3UG73) Electric Utility Heater

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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

I have a 150,000 BTU NATURAL GAS HEATER. IT WILL RUN FOR 10 SECONDS AND QUITS. IT WILL NOT IGNITE AGAIN UNLESS YOU SHUT IT OFF AND RESTART


Hi,
The heater is not proving the flame...and shutting down on safety...
Check the flame sensor and all connections of the ground from the burner to the ignition control...
The control may also be bad...
for additional help with Dayton units go to www.grainger.com
they sell that brand and have their own repair help techs.

heatman101

Sep 17, 2010 | Dayton (2NH04502025) Heater

1 Answer

Garage furnace (standing Pilot) pilot stops after 30 mins.


it sounds like the afc the fan control not working could be dust on the afc

Jan 10, 2010 | Dayton Gas Furnace Heater

1 Answer

My dayton NG heater fan will not shut off properly


Sounds like a bad fan switch. The switch is located on the heat exchanger and is 110 volt bi-metal switch. Follow the wires from the blower going back to the heatexchanger. Graingers can get you a new switch if you give them your model number. www.grainger.com.

Dec 12, 2009 | Dayton Heating & Cooling

1 Answer

Dayton 3E227A Heating Cycle


The sensor for the thermostat is probably going bad or has bad connections. It is (or thinks it is) heating up fast and therefore shuts of the heater.

Dec 30, 2007 | Dayton (3E386) Heater

2 Answers

Dayton gas heater mod 3E404


This is an easily fixed problem. There are two thermistor switches on Dayton furnaces. One controls the fan motor run function and the heater valve on/off function. The other called a blocked vent switch (located in the top front of the heater) stops the gas valve from opening in the event the
vent is plugged. However, if the furnace was totally shut down for the summer and is now being fired up for winter, the block vent switch has to be reset. The switch has a reset button on it, push it and it should solve your problem. Also, check to make sure the fan run thermistor is clean and does not have debris around it as that acts a insulator for heat to keep the fan run function on.

Dec 30, 2007 | Heating & Cooling

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