Burner Tube Air Adjustments on new Dometic Appliances?

Even tho new, it does not take long for Insects to make a nest inside the burner tube assbly or the tube thru the water heater tank. Refers do not have air adjustments. Doug
PS, This is a brand new model.
Page 16.

https://www.dometic.com/assets/82/15/installation%20and%20operating%20manual_68215.pdf

YEP...Brand NEW Version (Standard 6 gal combo and '9 gal' combo XT model)

Dometic moved the combustion/exhaust 'U' tube to center area (stacked one above other) so that they could install electric element in front (vs backside like previous models)
Now access to all components is available via outside compartment

Along with that change...burner/orifice assembly now no longer has 'air shutter'

Yellow/lazy flame....dirty orifice/burner tube
Spiders LOVE propane and will build a web quick as they can.
Web WILL disrupt the narrow air/fuel ratio and cause yellow flame (gas flow MUST be at spec in order to 'pull' sufficient air in via venturi)

Air Pressure will not disturb spider webs....
Clean using small bottle brush for burner tube
Soak orifice in alcohol then blow it dry...just use your mouth to blow NOT high pressure air or poke anything thru it---damage the metered hole and you will need a new orifice

IN the photo the air/ratio adjustment is lower left the WINDOW in the pipe

there should be (though I do not see it) either a slider or a twist around collar on that wide open window that reduces the air flow.

As I said I did NOT see it in the photo.

wa8yxm wrote:
IN the photo the air/ratio adjustment is lower left the WINDOW in the pipe

there should be (though I do not see it) either a slider or a twist around collar on that wide open window that reduces the air flow.

As I said I did NOT see it in the photo.

You did not see it because it is NOT supposed to have one. Doug

dougrainer wrote:

wa8yxm wrote:
IN the photo the air/ratio adjustment is lower left the WINDOW in the pipe

there should be (though I do not see it) either a slider or a twist around collar on that wide open window that reduces the air flow.

As I said I did NOT see it in the photo.

You did not see it because it is NOT supposed to have one. Doug

As stated:
Along with that change...burner/orifice assembly now no longer has 'air shutter'

Interesting. Kind of eliminates resetting mixture for altitude.

Said another way the proper "air shutter" setting/air/fuel mixture at our house (elevation 27') is WAY OFF from where we spend many summers in Angel Fire NM at 8,700'.

Just wondering, if both the refrigerator and water heater are having the same issues, could it be low pressure on the main propane regulator? I may order an manometer to check propane flow?

wolfe10 wrote:
Interesting. Kind of eliminates resetting mixture for altitude.

Said another way the proper "air shutter" setting/air/fuel mixture at our house (elevation 27') is WAY OFF from where we spend many summers in Angel Fire NM at 8,700'.

LP pressure will usually compensate for Hi altitude use. Gasoline appliances/vehicles are a different matter. Doug

Scott M wrote:
Just wondering, if both the refrigerator and water heater are having the same issues, could it be low pressure on the main propane regulator? I may order an manometer to check propane flow?

What issue with the refer? You did not state problem with the refer.
Light the Range Burners, then Fire up the Water Heater on LP. Fire up the Furnace. Watch the Range burners with this LP load. The burner flames on the range should not fluctuate or pulsate or diminish. If they do, your LP regulator is BAD. Brand New, It needs replaced not adjusted. Doug

Sorry, I was having the same problem with the refrigerator. Pilot light fires up right away, but in a few minutes starts to sputter and flame gets sucked back into the burner tube, just like the water heater.