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Thread: Monitor 2400 E 14 error code

  1. #1
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    Monitor 2400 E 14 error code

    I have a 5 year old Monitor 2400 Kerosene heater. It has been shutting off lately with an E 14 error code. I checked the fuel source as well as cleaned any dust. All good there. It will burn a bright yellow flame in the window before shutting off. I opened it up, took out the flame rod, cleaned it and replaced it. The flame rod gasket was pretty trashed. I have a new flame rod gasket ordered. Does anyone know if this could be the issue, or do I need to further rebuild/clean this thing? How important is that gasket? Will a bad gasket cause the unit to burn hot and shut off?

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    E-14

    The E-14 error code has to do with the flame.
    You state yellow flames. this would indicate insufficient combustion air. check for a blockage at the air inlet tube. that's the surround pipe part of the exhaust tube. the blower bearings might be on the way out. with a water manometer the pressure should be around a 3" water column.
    check for crap in the tube going from the blower to the bottom of the combustion pot. there are two rubber elbows in this line.
    it is unlikely that the flamerod gasket would be at fault.
    check the fuel sump is clear of all junk. water mixed with kerosene looks like a brown sludge. clean out the solenoid pump filter with a few shots of gumout carb cleaner. clean the sump filter with gumout.
    check to see if the outdoor tank is at least 18 inches above the inlet line to your heater. because the flow is strictly gravity feed, lack of pressure will take forever to fill the sump tank.

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    Very helpful thank you. Airflow seems fine. Fan is working fine. My fuel tank is in the basement with a lift pump bringing fuel to the unit on 1st floor. Lift pump is working fine and I'm going through fuel. The unit burns fine for a while with blue flame, then after 20 minutes to a couple of hours, it'll have a bright yellow flame right before it shuts off. It will turn back on OK and work fine for a while longer.
    I just got a delivery of Kerosene before this started happening. I thought it was a coincidence but now I'm not sure???
    Thoughts?

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    M2400 flame

    As HayZee stated, you need the check the air side of the flue on the outside of your house. It should be clean of all ice and snow. The other question is, do you have the correct air dampers installed? One fits on the blower case and should have a small screw through it. The other is in the air hose. It should be marked STD if you do not have an extended exhaust. As a point, the flame will change from blue to orange or bright at the end of the cycle when the fuel is no longer flowing to the burner. At some point the mixture is to lean to burn and the stove shuts off. This is normal. If you had received the wrong fuel (#2) the flame would be yellow all the time and the window would soot up very quickly. The E14 message means the stove lit normal and sometime later the stove quit, i.e. fuel, dirty filter, over heat.

    Tom
    Last edited by hawkins111; 01-16-2013 at 11:23 AM. Reason: left out some info

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    2400

    I consulted my 2400 cheat sheets and here's what it says:
    E14 Flame failure There are obstacles at circulation
    air inlet or outlet.
    Fan cage is clogged with dust.
    Gas pressure dropped when other appliances are used.

    It all boils down to air flow or lack of fuel. no flame no heat, unit in lockout.
    try unplugging the unit and plugging it back it. this is the only way to reset the computer.
    simply turning it off then on with the push button won't do.

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    reset computer??

    HayZee,

    Please explain what goes on with the resetting of the computer. I'm not sure what you mean here.

    Tom

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    I have tried unplugging the unit, with same results. It has run for as long as 14 hours without shutting down, but usually lasts 15 minutes.
    The air intake is free of blockage. I'm not sure about dampers. I'll have to look into that. ?? I get that it's fuel/air flow.

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    M2400 flame sensor

    When you removed the flame rod did it have black soot on it?

    Tom

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    It had what looked like white carbon build up on it. I cleaned it with mild sandpaper.
    Tom

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    troubleshoot the flame

    Tom,

    You need to watch the flame and the burner light at the same time. If the stove quits we need to know if the flame was strong when the Burner light went off or if the flame dies and then the Burner light goes off. If the flame is strong then there is a problem with the flame sensor. The sensor is not bad, but it is not recognizing the flame. The flame may not be near enough to the sensor (bad burner mat or ring) or the sensor may be too close to the burner or ring. If the flame dies down and then the Burner light goes out there is a fuel problem. Take a look and get back to us.

    Tom

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