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Thread: Monitor 30 heater won't light

  1. #21
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    I believe it's the A connector on the main board.

  2. #22
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    OK, I am testing the unit now and when its on the front solenoid clicks on, the rear one does not. They are wired together in parallel so its definitely getting power. Does it have 2 solenoids on the valve so it has a redundant backup? I would imagine they are normally closed. I'm pretty sure thats why its not getting fuel. Any ideas on a fix? Or a similar part that can be retrofitted from a different heater?

  3. #23
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    I took the solenoid out and checked the resistance which was in spec. So I put it back in and it started working. So I hooked up the tank and am getting fuel to the burn chamber. I turn it on and the low and medium lights come on and the combustion blower. I can feel the ignitor getting warm but its been 30 minutes or so and I still can't see a flame. Any ideas?

  4. #24
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    There are three solenoids on a Monitor 30. Med and High are on the top of the sump. The safety solenoid is down stream a little. Any wiring problems with the blower motor and safety switch can cause the safety solenoid to remain closed. Do you have a wiring diagram? If not I'll try to get you one. Send me a notification on the forum with your email address. The forum will not take large pictures.

  5. #25
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    I got the heater to light, sort of. There is a little yellow flame near where the nozzle goes in when I blow on the hose going into the sump. It then dies down after I let off. Could the nozzle inside the pot be clogged? The fuel line itself looked fine when I removed it from the pot.

  6. #26
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    The nozzle could be blocked or the pot could be full of soot. What about your fueling system? Do you have good head pressure?

  7. The Following User Says Thank You to hawkins111 For This Useful Post:

    rrob311 (11-29-2017)

  8. #27
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    Fixed

    It looks like it is finally fixed. I took off the fuel inlet to the burn pot and cleaned out the carbon with a drill bit and a paper clip. I didn't realize it was clogged. Its cranking right now so I am happy.

  9. #28
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    I am using a gravity fed 5 gallon quik tank for this.

    One thing I would like to note is that the inside of this unit looks similar to my oil stove. I wonder how well it would burn #2 heating oil due to the design. The burner ring is almost the same design as the one in my oil stove.

  10. #29
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    #2 is too heavy. Too much carbon. The stove is not meant to run on #2. ULSD would work OK.

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