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GE Gas Range JGBP90MEB3BC Broiler not burning clean

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I have a GE gas range

Model # JGBP90MEB3BC

Serial # LA254133P

 

Broiler is not burning clean. Too large of a flame. Leaving soot on upper part of oven cavity.

There is no adjustment on the orifice that I can see.  Burner is clean/good.

This is connected to bottle gas/propane.

All top burners and bake burn clean with no problem.

Should I just replaced orifice and/or valve?  Is there a different part # for LP orifice?

 

Thanks,

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These types of burners generally use a hood type of orifice. There is a pin behind the orifice. When you tighten down the orifice, the pin restricts the flow of gas. For LP, these hood orifices should be tightened down to their limit.

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Yes. That is what I am used to seeing but this orifice is fixed.  It can not be tightened down...  as far as I can see.

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Taken from the manual that comes with the range.

CONVERTING TO LP GAS (or converting back to natural gas from LP)

This range leaves the factory set for use with natural gas. If you want to convert to LP gas, the conversion must be performed by a qualified LP gas installer.

The conversion instructions and LP orifices can be found attached to the range next to the pressure regulator.

Keep these instructions and the orifices in case you want to convert back to natural gas.

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This has already been converted by someone.  The instructions and orifices are no longer there.  Was it necessary to change the broiler orifice when converting if so can I order the correct orifice?

When I look at the parts breakdown it lists only 1 orifice for the broil and does not indicate if it is LP or Nat.  In the parts breakdown there are separate orifices for LP and Nat for the top burners but not for the bake and broil.

This says to me that there is not an LP orifice for the broiler.  So why is it not burning good?  I was thinking about replacing the orifice and/or valve.  Can't think of anything else.  But then again I don't think that is gonna work.

???

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Hi Folks,

 

Update on this problem:

 

It's a new year and I'm trying to solve some old problems.  The broil orifice in question is not adjustable as far as I can see.  I even ordered a new one and its the same.  Not adjustable.  I tried to attach a pic but I am inept at doing that too I guess. That effort cost 15 Minute of my life I won't get back!  :banghead:  :smile:.   There is a pic on Repair Clinic if interested.   WB28K10018.  I called GE customer service but of course no help.  All they wanted to do was schedule a service call.  So unless anyone as a new suggestion I'll be forced to let this one go.

 

Thanks for all the help

 

HAPPY NEW YEAR to everyone!

Jim

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 I tried to attach a pic but I am inept at doing that too I guess. That effort cost 15 Minute of my life I won't get back!

 

Invest another 15 minutes in perusing the site help page and all the mysteries of Appliantology shall be revealed unto thee:  http://appliantology.org/index.php?app=core&module=help

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The orifice must already be screwed down all the way. Have you tried adjusting the fuel/air mixture? You can adjust the primary air by loosening the screw and moving the aluminum shutter; it's on the part of the burner that slips over the office.

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The orifice must already be screwed down all the way.

How do you figure that?

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He says it's not adjustable. I was thinking because it wouldn't  screw down any more, it was already adjust for LP.

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I was looking through the parts for this range and came across this orifice hood: http://www.repairclinic.com/PartDetail/Orifice/WB28K202/255954

If you look at the straight-on view of the orifice hole, it appears smaller than the red-banded orifice hood, which it would be for propane. Now I'm starting to wonder if this is the one range GE made that uses separate orifice spuds for nat gas and propane.

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I don't know how old this GE range is but I'm seeing this in the new Whirlpools.

 

Just did one today, (a DSI spark ignition model), with sealed surface burners.  The conversion kit was four surface burner orifices and a screw in orifice for the bake burner and a hood style orifice for the broil burner, (broil burner orifice holder doesn't have the LP spud in the center - you have to change hoods).

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appliance care, can you see if there is a color band around the orifice????...........................The "oven" green banded orifice  ( P/N  WB28K202)  is probably what you need VS. the red banded in P/N  WB28k10018......Has this unit  been used in this location before??????.......It appears the 'Bake" orifice ( P/N  WB28K60)     has the adjustable spud.......... I.E.  Crank down to convert to Propane...................." Converted by someone else" does not mean that they changed / converted it correctly..................Like I have fell for that one before... :banghead: .

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Thanks for all the input.

Much appreciated!

Been crazy busy but gonna get on this today.

Just to clarify the top burners and bake burner all burn fine.  The bake burner orifice is adjustable and has been screwed down.  The broil burner orifice is not adjustable.  It is cranked down all the way and the flame is to large.  The shutter adjustment does not help.   Broil orifice has a red band on it so I do believe that I need the WB28K202 orifice. 

I'll let you know the results.

 

Thanks again, Jim

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Update:

 

Went today and installed the new orifice.   WB28K202 with the green band.  Everything working fine.

 

Thanks for all the help!

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