Monitor Vented Kerosene Heater

[hawkins111]

M441 overhaul

You need to overhaul the combustion chamber. The mat has lifted and the ring may be warped. The heat exchanger needs to be cleaned out as well. If there is any noise from the combustion blower motor you will need to install new bearings. While you are at it you might as well do the “O” ring on the damper solenoid.

Tom

[Bryand]

....Well,I'm having trouble with the Monitor 441 again.It just started shutting down.Intial startup sequence seems normal until the burner lights up,runs for a minute and a half,then stops,and the heater begins to cycle to shut down.Afetr my last cleaning,and replacement of the flame detector,all was fine.Now it acts as if the flame detector is not sensing the initial burner light up.Opening it up to have a look,I found slight sooting insde the burner bonnet,and similar sooting of the mineral glass window to the burner..my initial reason for opening it up.It seems unlikely that the flame detector rod/assembly is faulty...does anyone have any ideas as to what's causing the heater to shut down?..It definetly appears to be a safety device triggering the shut down.I've cleaned the fuel screen,replaced the filter,and there's plenty of fuel in the tank...

Did you clean the flame sensor good. Just a little soot will shut it down. Sounds like you need to find out where your sooting is coming from.

[IndnChief]

I have found McMaster -Carr to be very helpful.They are an industrial supplier of all sorts of obscure stuff.
Monitor OEM parts are available from a guy whose business is called
"All Around the House",Box 629,Glen Wild, NY (845)434-0212.
Speak with John,or Irwin.I don't their web site address,so do a google search....nice folks.

....Well,I'm having trouble with the Monitor 441 again.It just started shutting down.Intial startup sequence seems normal until the burner lights up,runs for a minute and a half,then stops,and the heater begins to cycle to shut down.Afetr my last cleaning,and replacement of the flame detector,all was fine.Now it acts as if the flame detector is not sensing the initial burner light up.Opening it up to have a look,I found slight sooting insde the burner bonnet,and similar sooting of the mineral glass window to the burner..my initial reason for opening it up.It seems unlikely that the flame detector rod/assembly is faulty...does anyone have any ideas as to what's causing the heater to shut down?..It definetly appears to be a safety device triggering the shut down.I've cleaned the fuel screen,replaced the filter,and there's plenty of fuel in the tank...

[JELLIOTT2000]

O Rings

I know the one that is in the Extension Kit is a Size #222 O-Ring, but I am told the one inside the unit at the exhaust is a different size. Does anyone know what size that one is ??

[JELLIOTT2000]

"O" Rings

Thank you very much fr the speedy reply !!!

[IndnChief]

sources for O rings

I have found McMaster -Carr to be very helpful.They are an industrial supplier of all sorts of obscure stuff.
Monitor OEM parts are available from a guy whose business is called
"All Around the House",Box 629,Glen Wild, NY (845)434-0212.
Speak with John,or Irwin.I don't their web site address,so do a google search....nice folks.

[JELLIOTT2000]

Do you happen to know the O ring Size is that is inside the Unit where the offset tubes goes and if there is a place to order them. "
"two o rings in the exhaust line - one at the outside house connection tee and one inside the unit where the offset tube goes.

[IndnChief]

....Thank you!

[HayZee518]

check out this monitor distributor. they can get monitor parts as they service monitor, rinnai and toyostove.
Keeseville Location
1698 Front Street
Keeseville, NY 12944
518-834-9790 map
they are adirondack hardware

[HayZee518]

check out this monitor distributor. they can get monitor parts as they service monitor, rinnai and toyostove.
Keeseville Location
1698 Front Street
Keeseville, NY 12944
518-834-9790 map
they are adirondack hardware

[IndnChief]

I looked at the jimmyj55.com link...did'nt see what I need beyond the gasket.Do you have an idea of what the flame detector rod costs?..It's probaly an indidual item,but I wonder if it's sold in kit form?....
Thanks again,Gary

[HayZee518]

No there isn't

[IndnChief]

broken flame detector rod

...well,in replacing the gasket of the front cover,I broke the damn flame detector rod.Is there an alternative to a new #6355 from Monitor?

[IndnChief]

...I totally agree.After spending around $10 for a fuel screen gasket,I went to McMaster-Carr and ordered sheet BUNA rubber and cut my own...now IF the folks at Monitor actually took an interest in what owners are concerned about,they'd probably sell a lot more heaters,and have a support base among their product owners...

[HayZee518]

I'm very glad this forum and especially the monitor heating section is of some help to you. Input from many people with monitors is very helpful. I only took an interest in it because the local service person charges $125 an hour for service plus parts. One of these days I'm gonna go through the flow diagram troubleshooting page(s) and clarify what's in there. the pdf type is soo small and difficult to read. Other than that I'll help with what I can. I put a reference to home repair forum on that Bob Vila site that deals with monitor heaters.