MPI 441 Monitor (Kerosene) Heater Isn't Running Correctly, Can Someone Give Me Instructions?

Question

I ran out of K-1 last night and had 100 gallons delivered today. Now the heater isn't running right. I've been on the phone off and on all day with my oil company's service department and they have walked me thru several steps but nothing seems to work. I DO NOT have an owner's manual for the heater. After it heats up to the set temperature it shuts itself off. It is not set on auto or economy. I have pushed and held down the red button on the side. I do not know what, if anything, needs to be done with the reset temperature guage on the side. I have turned it on and off and also unplugged it, waited, then plugged it back in. The burner does ignite as I do see it glowing when looking into the front. The valve is open inside and also outside on the tank. It makes a ticking or tapping noise when it is heating up. Please can someone help me with this, we are freezing up here in the Northeast!

Answer 1

I'm going to assume you have only one line coming from your fuel tank. If this is so, you now have air in that line as you said you ran out of fuel. What you are experiencing is the burner cannot maintain a proper flame without a solid liquid flow to pressurize the nozzle. You need only bleed your pump. There will be a small fitting, not too far from where the K-1 comes into the pump. It will likely have a hex nut on it and a small nipple that you can attach a small hose to. After attaching the hose, you crack open the fitting its attached to. Push your reset button and turn on the heater. Foam will probably come out first, and possibly your heater will time out because while bleeding, you can't maintain a proper flame either and the system will shut down - this is OK. Wait a couple minutes and reset it again. Soon you should see relatively clear K-1. At this moment you hand tighten that fitting and remove the hose. Your burner should be fine now.

(System with two lines from the tank almost always can self-prime and do not require bleeding. If you have two lines and have the problems you describe, you need a service man.)

If you've already bled the system, you may need to replace your filter and nozzle. This is all under $10 and not difficult for someone mechanically inclined. After this you may need to adjust your electrodes or finally your pump may have a screen which could get plugged over time. Not difficult to replace either, and only a couple of bucks. Again, if these don't get you out of that jam, you need a competent service person.

Answer 2

Monitor Kerosene Heater

Answer 3

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RE:
MPI 441 Monitor (Kerosene) Heater Isn't Running Correctly, Can Someone Give Me Instructions?
I ran out of K-1 last night and had 100 gallons delivered today. Now the heater isn't running right. I've been on the phone off and on all day with my oil company's service department and they have walked me thru several steps but nothing seems to work. I DO NOT have an owner's...

Answer 4

Monitor Heater

Answer 5

I have a mpi monitor 41. I had fuel delivered and now my heater acts like it is trying to turn on but the flame only burns for a second then goes out, makes the machine turn off and the lights start flashing. I have bleed the line at the fuel prime button as well as at the tank itself. Help me. Why won't the flame stay lit.

Answer 6

Monitor Heater Kerosene

Answer 7

i was told that all kerosene monitors including the 441 should smell. that unless the level of smell is unlivable that the company says they wont fix it. do all monitors smell?

Answer 8

heater turns on but not long after flame is on it shuts down, bleeded it and still no results

Answer 9

Samatha what u described sounds like you need to change the wick ....u can find videos on youtube.com