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Monitor heater yellow flame

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  • Monitor heater yellow flame

    I have just put in new combustion motor bearings and damper o-ring and get a nice blue flame until it goes on high. Is it possible I need to replace the combustion motor?

    Do have Spare motors - wonder if anyone else has run into this?

    burn ring and burn mat are new, the burn pot has been sandblasted so all air holes are clear.

    The monitor is a monitor 41
    Last edited by msearcher; 05-16-2012, 06:43 PM. Reason: Heater.model

  • #2
    monitor

    is there any soot being produced with the yellow flame? I'm assuming you cleaned out the fuel sump in your overhaul process. if you replaced the bearings, why would you replace the motor? it spins up and allows your heater to run in low-med speed.

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    • #3
      what is the pressure differential ? did you forget any gaskets ?

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      • #4
        Originally posted by HayZee518 View Post
        is there any soot being produced with the yellow flame? I'm assuming you cleaned out the fuel sump in your overhaul process. if you replaced the bearings, why would you replace the motor? it spins up and allows your heater to run in low-med speed.
        Motor does spin but wondered if the motor might not be putting out the rpm's.

        Yes I did clean out the sump, have not put my guage on to test the air pressure.

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        • #5
          I will check the pressure. No I did not forget any gaskets

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          • #6
            exhaust good ? air intake ? using correct air intake parts ? standard damper ?
            dont you live somewhere near me ?

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            • #7
              let me know what you get

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              • #8
                Originally posted by dfitz3390 View Post
                exhaust good ? air intake ? using correct air intake parts ? standard damper ?
                dont you live somewhere near me ?
                Standard damper, good exhaust. Will check air pressure.

                Yes in vt

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                • #9
                  did you figure it out ? what are you using to verify differential ?

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                  • #10
                    Originally posted by dfitz3390 View Post
                    did you figure it out ? what are you using to verify differential ?
                    Not had A chance to put my guage on it - factory air guage (magnehelic ) made by dwyer

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                    • #11
                      differential air gauge

                      you don't need something as exotic as a store bought air gauge. a simple 36 inch water column gauge will do. look online there are sites on how to build one. its called a MANOMETER
                      Last edited by HayZee518; 05-22-2012, 12:46 PM.

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                      • #12
                        So how did you make out with the heater ?

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                        • #13
                          frozen

                          Dan,

                          I think msearcher froze to death.

                          Tom

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                          • #14
                            Ha ha,
                            maybe i should go see if he needs thawing

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                            • #15
                              Hey msearcher,
                              you still with us buddy ?
                              i know you must have stopped using the unit by now since its 90 outside, well probably inside too we were wondering how you made out ?

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