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You must install the supplied double-walled vent tube between the heater and outdoors. Failure to properly install the vent tube will quickly deplete oxygen from the space it is operating in. That is a potentially deadly situation.
The pipe is special. The inner pipe is for hot exhaust gasses to be sent outside and the outer walled pipe is for fresh combustion air to be brought into the heater. This set up is why the heater does not create drafts in the home.
Count the number of light flashes. This is a trouble code. There should be a troubleshooting guide that came with the heater which should tell you what the problem is.
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!
The Monitor 422 has a strainer in the fuel sump. Before you try to take it out, shut off the fuel at the oil barrel and have some old rags to catch some kerosene that will come out. I use a piece of plastic to direct it into a small bowl. If you stand in front of the heater, look on the right side at the bottom. You will see a small plate with 2 screws holding it to the fuel sump. Remove those 2 screws and the plate. The strainer will be in there. You can clean it with some fresh kerosene or I use a can of carbeurator cleaner. You should also have a filter in the fuel line outside close to the oil barrel. If you don't you should get one installed. It blocks any water in the barrel from getting to the heater which will cause your igniter to burn out.
You have some kind of fuel problem. When you mention 5 gals of fuel, that leads me to think you need more fuel ( more pressure). If you have a large tank and only have 5 gals you may no have enough head pressure to push the fuel through the line and all the filters in the system. That being said the Monitor 30 is the oldest vented heater around. Parts have not been available for 15 years. The thing that scares me about the M30 is the flame safety circuit. I don't think it is adequate. If you rely on this heater to keep pipes thawed I would get a new Monitor or Toyo.
I had the same problem last night and this morning. Its in the manual. I had to take the fan off of the back and vaccuum out all of the dust/lint that built up and it was a lot. It is a safety feature. It's a overheating protection feature that usually triggers if there is build up in the fan, front vent or vent pipe to the outside. I hope this helps.
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