The DEFINATIVE Monitor Thread

[catamount]

not enough of combustion air. yellow means soot is being produced - yes inefficient flame.

HayZee, thanks for the feedback. When the heater is burning on HIGH it feels pretty hot but not as hot as I remember.

What are the problems that lead to lack of combustion air? I'm just wondering what I can do to improve the burn.

Thanks!

[HayZee518]

not enough of combustion air. yellow means soot is being produced - yes inefficient flame.

[catamount]

Color of the flame

Hi guys, I'm reading a lot about seeing a blue flame and am wondering if I've got a problem. My flame is blue but the pot glows orange and there are lots of yellow whisps in the flame. Yellow tips I guess you could call it.

Could this be a sign of inefficient burning?

[willysfan]

422

The line may have had something in it that is now cleared enough to allow it not to starve. Has been ok for awhile.The tank is one that goes in cap down,with piton that opens valve. I think there may have been some crud in line from sump to clv,now probably in screen in clv.I will clean that again at first chance. Trying to get ducts fixed and a couple other little things done, so that they can come and install new furnace,then monitor will be backup.

[HayZee518]

you said your unit uses an internal tank. have you checked the fuel line coming out of the tank for kinks? is the cap for the tank vented? if it isn't just uncork the cap a little so you don't create a vacuum within the tank. fuel travels to the sump via gravity.

[willysfan]

The heater ran all last night without a problem.I expect that it will act up again,but it is better than it was.I will be pulling the clv and pump and cleaning it, but hope to wait till the new furnace is in.

[willysfan]

No signs of water but I guess I will take out the unit and clean the crap again. I am using the capsule tank. It seems that the fuel isn't keeping the clv full. If i catch it when the pump starts starving and press the red button( and hold till the pump quiets) all stays normal.Unless the room temp gets like 4 degrees below the set temp this heater doesn't go on high. Usually runs on low or one step up.

[HayZee518]

If there is water in your kero line, then this will travel with the kero to the sump/pump tank. Kerosene is lighter than water so it floats on top of the water. The pump, pumps from the bottom of the sump so if there's any water - you will be pumping water to the burner mat. This will cause loss of flame and a lockout. When the solenoid pump starts to make a rapping noise, it is starving for fuel. If you feel ambitious, shut off the fuel outside, drain the sump by removing the large screw, unplug the heater. Remove the brass gland nut from the fuel line, four phillips screws from the sump base, the two wires off the solenoid pump, the brass gland nut with the fuel tube from the solenoid pump - and remove the tank.. take the pump and top plate off as an assembly. clean any crap out of the bottom of the tank. Use q tips to slosh around some GUMOUT carb cleaner around the mechanical linkage of the toggle over center lockout. Clean that filter tube again with gumout. Now replace everything back the way you took it out. Turn on the fuel and press the red button a few times to let fuel get up to level in the sump/pump tank - plug in the heater, set your set point and wait for the purge cycle to complete. The base of the combustion pot should be warm during the purge cycle. This means the ignitor is working. After purge the pump will turn on and soon you should hear a shallow "whump" a sound that the kero has ignited. The burner and blower should shift into high speed. You should have eight lights on the panel. Yellow tips of flame means that your combustion blower isn't spinning fast enough and may be a sign that motor bearings may need replacing. Bearing type is 608Z with a 8mm bore. These are the same bearings that are used on inline skates. A brand new motor will run you around $150.00.

[willysfan]

422 question

Question-- I have been having problems with a 422,if it goes to high or if it runs alot. The issue is the fuel pump makes noise and the flame dies. I assume that the pump is starving for fuel.I always keep the basket clean,today I took out the filter in the clv. When all cleaned up and restarted, ran fine,even on high(little too much yellow), then I went in the other room,came back and the burner lights were flashing. I waited a few minutes then turned it back on, when it got cool enough it restarted, after a 8-9 mins. the pump lightly started the noise, I hit the valve reset a couple of times and it has been fine. It is winter here in Maine and I am just using this heater to get by until they install new furnace. I may decide to keep it to use in addition or master bed room,would probably rebuild it then,but now I really need to keep it running. Do I need to take out all the fuel components and clean every thing?

[huemogus]

That is a metric thread, if you can take the shaft to Lowes and the will fit you a net.

[patthis75]

Does anyone know the size of the left-handed nut that holds the impreller onto the combustion motor? I changed bearings, and lost it. Thanks in advanced.

[jimmyj55]

For basic problems and answers, see the blogs at jimmyj55.com

[powermax]

Is this manual still available? Get error message saying it has been removed. : - (

[huemogus]

Monitor Heaters

I to have a need for the repair manual. Where do I find HVAC sub director Monitors? Thank you!

bgbirtton@charter.net

[HayZee518]

please go to HVAC sub directory Monitor Heaters. Go down four or five entries to where it says Monitor Heater Service Manual with my handle after it [HayZee518] and click on the url. then save it to your browser or pdf file in adobe reader 9.0