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Arne - I have a monitor 41 which is one series BELOW the 441. I do all my servicing on the heater. I have a pdf file for the 441 which I could email to you. as far as a repair manual, you'll never get one. NO ONE on this green earth will EVER sell you one. I tried to get one through MPI but since I'm not an authorized dealer, no way. Some replacement gaskets I was able to get from mc master- carr industrial supply and a piece of boro-silicate glass for the view port. -
Monitor 441 Heater
Have a Monitor 441, about 10+ years old. It came with the house . This is a kerosene vented heater.
Last night the outside temp was about 8F and the unit stopped working.
The fire ring will burn but shortly after the heat exchanger fan goes on, the fire goes out and the unit shuts down. The flame is a nice steady blue.
Referring to manual , I cleaned internal fuel filter. Checked level of fuel in tank.
Removed external fuel filter and cleaned filter insert. Fuel appeared to be running fine from tank to filter.
It is VERY difficult to get info on this heater, such as repair manual.
I don't have the cash to replace the unit before Spring.
What can I do to diagnose and fix??????????
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