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Lastnight our monitor 441 heater went out. Our kerosene tank is full. We turned it back on, the ignighter will ignite and it will run for a little while then it will kick off again. Hardware store says it is carbon build up, or trash in the line. Please help any suggestions as it is 13 degrees and we need some heat!!!

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It could be carbon buildup, or it could be the oxygen depletion sensor that turns the unit off for your safety if the oxygen levels in the dwelling drop too low.

Try placing the unit hear a window with the window cracked open. Fire it up and see if it behaves differently. Fossil fuel space heaters can be dangerous in very cold weather because they consume large amounts of oxygen and can cause carbon monoxide poisoning - be careful.

A window should always be kept cracked in the are where the heater is operated.

Posted on Dec 12, 2009


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1 Answer

It starts up good then stops and a big cloud of smoke comes out. Got a new ignighter (50$) but still doing the same. can you help me? You could have an air problem. Take the cover off the heater and see if it runs ok, if it does then you have an air problem, check for bad lines or cracked housings

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Ihave a 441 monitor kerosene heater,burner status light are flashing and the heater shuts down.the heater has had a turnup, tank filter has been replaced, flow has been checked,igniter or flame dtecti

look and see if the part that stubs out the wick upon turning it off is stuck up or not dis engaging properly. if stuck up the over heating would shut it down!.

Jan 04, 2013 | Heating & Cooling

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My light won't ignite on my mpi 441 monitor

this morning my heater, monitor 411, was running fine as always.
while it was running the power company came to work on a pole and turned the power off. it was down for about three hours. once power was restored it wouldn't come on.
the pilot light is off but I'm not sure if it's suppose to be while not running.I've tried priming it with three pumps, resetting by unplugging, beleeding the line, all don't work.
it's suppose to be 22f tonight so I could sure use some help.
oh, I have a manual but, of course, it doesn't cover the problem. I also called the company but got a voice mailbox...go figure.
somebody please help!

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1 Answer

I replaced all filters and the nozzel pump presure is at 6psi i'm running desiel the ignighter glows for 5-6sec I'mgetting fual but ignighter goes out before flame

I want you to inspect the fuel tank, you are looking for water that may have entered while in storage. Condensation builds from storing them and it can duplicate what you are saying here. What I did was to empty the fuel in a clean five gallon bucket and observe, fuel is lighter than water so it floats to the top water sinks to the bottom. If water is present please try to dry out the tank the best you can by soaking it up with a rag. You can siphon off the fuel just be careful not to get the water. If no water is present check to see how the igniter is positioned in conjunction to the angled spray of atomized fuel.You may have to bend it in a little closer to the fuel.

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My 441 monitor heater will ignite and then it burns for a little while then goes out and starts flashing.

sounds like your heater may be starving for fuel. check all your rubber hoses for cracks first and then continue troubleshooting from there.

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1 Answer

Looking for repair of monitor 441 kerosene heater in morganton, nc

Did you get your Monitor repaired? I'm located just north of Winston Salem. You can email me at

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1 Answer

My monitor heater 441 comes on but after 3 mins.or so the burner lights come on full then starts blinking still no flames no heat.

Not a lot of details to go on. Does the pump make a loud ticking sound? That would mean it isn't getting any fuel to it and you would need to check your filter and the strainer in the fuel sump. You may need to check your igniter also. If it isn't working the heater will not light and kerosene will be building up in the burner everytime you try to light it. If you have a clamp on ammeter you can clamp around 1 of the igniter wires and should get 2 - 4 amps when you turn the heater on. If this doesn't help you can email me a

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Monitor 2400 Kerosene heater service

Check your filter in the fuel line outside if you have one. Also check the strainer in the fuel sump.

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  1. clean the fuel filter
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  3. set the air pump pressure.
It should fire off, unless you have developed an air leak, worn nozzle, bad fan, or a motor that is not turning rpm's.

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Operating manual for MPI monitor heater

You can obtain an electronic copy of the 441 owner's manual from

Scroll towards the bottom of the page to find the 441 or 442 manuals.

Jan 09, 2008 | Heating & Cooling

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