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Burner clicking on and off rapidly when reaching restart temp.

Dayton garage heater burner clicking on and off when thermostat calling for heat,(runs fine shuts down fine and then burner starts to click rapidly on and off when thermostat calls for heat again

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The gas orifices may be plugged try to poke them out with a fine wire . shyt off power and gas before cleaning as you don't want to be burned

Posted on Dec 13, 2009

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Pilot and burner light then gas shut off model 7900


How many degrees before it reaches desired temp, does it shut off? A thermostat is designed to shut the furnace off a couple/ few degrees before it reaches set temp. It has what is called a heat anticipater, which shuts the burner down, and lets the blower use the remaining heat from the heat exchanger to bring it up to desired temp making it more efficient. If it is more than a few degrees, replace the thermostat. You can jump out the red and white wires to confirm the faulty thermostat. If by doing this, the furnace never shuts down, until you separate the red and white wires. That confirms a faulty thermostat. Hope this helps someone.

Oct 06, 2014 | Coleman Propane Forced Air 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

1 Answer

I have a Dayton 3E366B hanging my garage, and it starts up -lights the burners - the fan kicks on, and then it shuts off... This cycle goes on and it does not run for long times to really get the heat up....


No I do not believe it is your thermocouple, as that only detects heat from the pilot light and permits the gas valve to open and have main flame ignition. I would be looking at thermostat placement, and safety limits built in to the heater. Making sure that the thermostat is not getting a straight on blast of hot air from the heater is my first guess. Try jumping out the thermostat by first removing the thermostat from it's housing and placing a jumper between the red and white wires as they are usually the control for heat. If your heater stays running it is the thermostat. If not you now have to trouble shoot all safety limits one at a time with a volt ohm meter and run continuity tests the limits should read closed except for the fan high limit it should read open until the temperature of the heat exchanger reaches it's set temperature. Remember to power down your unit when trouble shooting please.

Jan 11, 2011 | Dayton Heating & Cooling

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

Have 30,000 btu Dayton heater m#3e3665 when reaches temp. fan


Hi blow heater out with air line flame sensor could be dirty check out pressure switch jump this out see if it lights

Feb 09, 2010 | Dayton (3E379) Heater

1 Answer

I am having a problem with a dayton(3E229D) gas heater. It has a standalone pilot that is lit and stays lit. The problem is that the burners don't ignite. I turn the heat on at the thermostat the fan comes...


if you can use a meter check for 24 volts at the valve when you call for heat. If you have 24 volts and no burners then the valve is bad, if you do not have 24 volts then another safety is locking out the valve

Dec 11, 2009 | Dayton Gas Furnace Heater

1 Answer

Looing 2 buy!!


This is a good application of this type of heater. There are many things to consider as you size the heater though. Insulation, 1,2,3-car garage, insulated garage door, average ambient temp. etc. In most cases of garage heaters, they are used to temper the air from cold to a workable temperature. If this is the case, I'm sure this would take care of most applications of garage heating.

Oct 02, 2009 | Dayton G73 Utility 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

1 Answer

My Dayton garage heater model 2E636B does not heat up.


These heaters are the same as the marley heater, the element never gets red hot. the unit is set up so the fan kicks on after the element has heated to a certain temp and turns off after the element has cooled. It is common for these heater fans to cycle on and off quite often untill the air temp reaches about 55 degrees and then will operate normaly. If the fan still cycles too often you may have to replace the fan control and high limit switch. These are not very expensive and easy to replace yourself. they arte usualy attached to the back of the element with clips. The luke warm air is what these units put out. I have an equivelent to the dayton G73 and it heats a 24' X 30' garrage all winter in central Minnesota.

Nov 17, 2008 | Dayton G73 Utility Heater

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

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