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Thread: 422 troubleshooting

  1. #1
    StikineGirl is offline New Member
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    422 troubleshooting

    I was out of town when it ran out of fuel. This is a gravity large tank version. Got fuel, and it wouldn't run. I've changed fuel filter, cleaned strainer, cleaned around the basic inside areas. Starts up, I can feel it start to heat up, but the circulation fan never starts and and then the knocking starts. Of course then it all stops, the burn lights flash and it shuts down.
    FYI the combustion fan starts and runs great.
    After reading through several threads I've got some ideas:
    When I'm done writing this I plan to run it through the start up again so I can check the flame.Then I'm going to tear this apart as much as I can and clean! I've looked at all the trouble areas I've been reading about and am shocked at what I'm pulling out of this thing! I'm a new renter and honestly don't think this thing has been cleaned in several years! I'd really appreciate some direction and pointers from those of you with experience!
    Thanks!
    PS Small town in Alaska so please don't advise about calling landlord, it's been over a week and I'm better off on my own.
    After restart:
    1. couldn't see any flame through window at all.
    2. Outside of burn chamber was heating up.
    3. the Circulation still never came on.
    After cleaning and more reading a few things to report:
    1. the flame detective plug was almost completely separated in two pieces.
    2. Every nook and cranny was plugged with years of dust, filth and animal hair.
    3. It appears to be burning more on one side of the chamber more than the others; lots of soot build-up on that side and barely any around the rest.
    4. The flue is clear.
    5. Almost every gasket was disintegrated to shredded pieces.
    Last edited by StikineGirl; 04-01-2013 at 11:11 AM. Reason: Just updating with new info

  2. #2
    HayZee518's Avatar
    HayZee518 is offline Deity
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    heater

    get hold of hawkins, he lives in bethel ak.

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    StikineGirl is offline New Member
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    Thanks, I planned on giving him a day or two to see and respond! He seems to be the go to guy up here from all I read over the weekend! Thanks

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    hawkins111 is online now Journeyman
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    M422 trouble

    I think you need to bleed the air off the top of the filter. Remove the fuel line with the valve off. Open the valve and let the flow stabilize. It should shoot out almost 6 inches or so. Put the line back on the filter and your stove should start. Tom

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    StikineGirl is offline New Member
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    Quote Originally Posted by hawkins111 View Post
    I think you need to bleed the air off the top of the filter. Remove the fuel line with the valve off. Open the valve and let the flow stabilize. It should shoot out almost 6 inches or so. Put the line back on the filter and your stove should start. Tom
    Thanks, I will do and let you know how it goes!

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    StikineGirl is offline New Member
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    A little fuel dripped out from outside fuel line to the valve, but nothing came out the valve opening.
    Thoughts?

  8. #7
    hawkins111 is online now Journeyman
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    filter

    With the line disconnected and the valve open you should see a flow of fuel that shoots out 6 inches or so. If no fuel comes out, the filter must be blocked. How much fuel is in the tank and is the tank vented? You are in rain country. Is there a chance water got into the tank?

    Tom
    Last edited by hawkins111; 04-02-2013 at 04:25 PM. Reason: grammer

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    HayZee518's Avatar
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    monitor

    like hawkins said if you have any condensation in the tank it's likely frozen as is the water/fuel in the filter.
    my advice there would be to purchase a blanket type tank heater for your fuel

  10. #9
    StikineGirl is offline New Member
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    Update: Tank is in an enclosed shed area, no water issues. Temp is at 45 so no freezing issues if there were water! And yes tank is vented.
    Disconnected fuel line with valve end open and blew into the line, fuel poured out. Reassembled and nothing. Right now son's friend is feeding a line down through through the line to see if something happened along the route.
    Valve works, cleaned and checked.
    Any other ideas?
    Last edited by StikineGirl; 04-02-2013 at 10:55 PM. Reason: added info

  11. #10
    hawkins111 is online now Journeyman
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    fuel filter on tank

    Is there a filter on the tank? If not, you are on the right track cleaning the line. If there was a blockage at the valve there is more than likely stuff in the line as well. If there is no filter on the tank I would get one installed yesterday. Keep us posted, Tom

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