GE Oven JGSP48B0H4BB

[Tim M]

  Opened up the oven.  Flame very very low?  Clean to orifice?  How and where?

[RegUS_PatOff]

Bake and/or Broil ? ...

but it lights OK ?

[Tim M]

Bake only. Broil flame is large and wide. Bake flame is tiny, just along edges of burner.

All stove flames OK.

Oven bake burner lights, but takes a little extra time so there is a smell of gas. Then takes a long time to get up to temp.

[RegUS_PatOff]

JGSP48B0H4BB

maybe

JGSP48BH4BB ?

could be clogged Bake Burner .. or Gas Valve ...

was it working earlier ?

did this happen all at once ?

[Tim M]

Was working earlier. I think all happened at once.

[RegUS_PatOff]

if you could measure the Ignitor current .... (or swap them)

it's in series with the Gas Valve and needs at least 2.8+ amps to open ...

 

do you have or need the Service Manual ?

[Tim M]

ignitor measures 4.1 amps

[RegUS_PatOff]

kinda high ...

Norton (flat)  3.2A to 3.6A

Carborundum (round) 2.5A to 3.0A

[Tim M]

OK.

I didn't think it was the ignitor because the flame still lit. So having it "kinda high" can make it open just a bit?

Now, because of my assumption, I have to replace put the orifice hood back on. To get the proper adjustment I put it on until snug and the back it off 1-1/2 turns?

[RegUS_PatOff]

[user=28611]Tim M[/user] wrote:

... So having it "kinda high" can make it open just a bit? ..

I don't think so .. but was questioning the reading ...

.. put the orifice hood back on. To get the proper adjustment I put it on until snug and the back it off 1-1/2 turns? ...

I don't know ... may be in the service manual ..

[Tim M]

Ok. Now at 3.2 to 3.4 amps. But I promise it did read that high.

Takes 1-1/2 turns to tighten to snug to LP according to conversion so it must be the same back to Natural Gas.

Anyway, what shall I look at next?

[Tim M]

Valve Control? Orifice?

What else could it be if the broiler goes fine and all the burners?

[RegUS_PatOff]

sorry, I don't know ... I'm more of an electrical guy ..

[Tim M]

Is ignitor really only supposed to have 90 ohms?

[RegUS_PatOff]

it varies ... it starts at about 400 OHMS and lowers resistance as it heats up to eventually draw 3.0 amps  (40 OHMS)

(what's needed for the Gas valve to open) and at which time it would be HOT ! to ignite that gas.

Not as complicated as a Dryer Ignitor and the twin coils (3 windings) Gas Valves.

[Tim M]

This is stone cold and has 76.7ohms

[RegUS_PatOff]

 ... compare to the Broil Ignitor

[Tim M]

164 ohms for broil ignitor.

[Tim M]

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