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Old 10-24-2018, 12:18 PM   #1
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Older wedgewood propane stove

When i push in the pilot light knob the valve will not turn clockwise. it is a older stove would it be not good idea to spray penetrating oil on valve to try free it up it most probally has not been used in many years any help is appreciated. Thank you
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Old 10-24-2018, 12:29 PM   #2
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quick question will the valve turn without pushing in the know. On some gas appliances pushing in the know is to allow gas to flow to the pilot while you hold the know in and when the thermocouple is generating enough power the pilot stays lit and you release the knob and t turn the gas valve to on.
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Old 10-24-2018, 12:45 PM   #3
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Are you talking about the burner knob?
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Old 10-24-2018, 12:46 PM   #4
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Or the oven knob?
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Old 10-24-2018, 02:53 PM   #5
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It may not have a pilot. Push it in part way, turn the knob to the light position, push in all the way and hold it then light the burner. What is the make and model of the stove? There may be 2 tags with the make and model, 1 under the top panel of the stove top and other on the side of the oven door opening.
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Old 10-24-2018, 02:59 PM   #6
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Quote:
Originally Posted by SeaDog View Post
quick question will the valve turn without pushing in the know. On some gas appliances pushing in the know is to allow gas to flow to the pilot while you hold the know in and when the thermocouple is generating enough power the pilot stays lit and you release the knob and t turn the gas valve to on.
no. seems like it is seized up. Was going try spraying some penetrating oil on stem into valve try free it up. Not sure if can do w. Propane. Like "acyeteline" gas
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Old 10-24-2018, 03:00 PM   #7
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Knob will not turn
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Old 10-24-2018, 03:01 PM   #8
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Burner knob or oven knob?
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Old 10-24-2018, 03:36 PM   #9
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Oven knob
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Old 10-24-2018, 03:48 PM   #10
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Oven controls are not usually serviceable. Dont take it apart. Find a propane store or appliance store that can replace it for you. Due to the cost of repair, a replacement oven might be a better idea.
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Old 10-24-2018, 03:52 PM   #11
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https://www.amazon.com/Atwood-Mobile...VrL&ref=plSrch

$493.00
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Old 10-24-2018, 04:18 PM   #12
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Before you risk damaging your valve, perhaps you should remove it and examine it for markings to see if you can find a replacement. You may very well be able to buy a new one. If there's a number imprinted into the valve body, you may be able to search for the exact part. Hell, there might even be a "universal" part you could use. The search term may be "Wedgewood Oven Thermostat Control Knob." Note that Wedgewood may now be Atwood.

If you can't replace it, can you (carefully) disassemble it? It may well be an exploding nightmare of springs and so on...within that thermostat...but if you're lucky, you might be able to pull it apart and clean it with, for example, very fine steel wool.

In lieu of finding a replacement or disassembling it and successfully repairing it, regarding lubricating the valve, it's unlikely that much lubricant would make it past the knob shaft and into the valve mechanism. It is likely that you will need to remove the valve from the oven (removing both propane input and output connections as well as any mounting screws or concentric nuts on the shaft, and shoot lubricant into both the input and output sides where the pipes connect - as well as down the knob shaft...and let it sit for a while.

Also be aware that your OVEN control valve is thermostatically controlled. This means that, unlike a simple range top burner valve, lube in the valve may bugger up the thermostat.

I am a welder, and I'm aware that gauges for both oxygen and acetylene warn against using oil. Failure of valves on an oxy/acetylene torch are unlikely during the lifetime of a torch you'd dare to use. One might need to disassemble the valves on the torch and refresh the O-rings, etc, but the brass valves are unlikely to seize.

I cannot imagine why a tiny amount of lubricant contamination might be a hazard in a propane valve or at the burner downstream. Unlike oxy/acetylene gauges, hoses, and a torch, pressures are far lower with propane. In particular oxy/acetylene gauges connect to tanks at pressures as much as 2000 PSI, and oxygen, in particular, might ignite oil on contact at such pressures. But in your RV, you are downstream of the regulator - at "low pressure" - and propane is nowhere near as flammable or hot as acetylene. Unless you introduce oxygen into the valve somehow, lube will be no more likely to ignite than propane. It's my guess, but an educated guess, that any lube that might get picked up in the flow of propane will simply accompany the propane to the burner and get burned off.

But to be sure to remove as much lube as possible. Lube and free up the valve, then use an air compressor to blow out as much lube as possible - with the valve open and closed and from both sides and around the knob shaft. Don't forget that thermostat, so use LOW air pressure to blow out the oil...say 30 PSI or so. High pressure could wreck the thermostat. Once the valve is working smoothly again, it shouldn't require any "oil" to keep it functioning, so blowing out the excess will ensure you don't have an accumulation of oil in the valve or the lines attached to the valve.

This resource makes no mention of unusual hazards of "mixing propane and lubricant." They warn about lubricating a valve, because the lube might make the valve stick. Well, that's your problem already: "DO NOT apply oil to a sticky knob or button on a gas control valve. Oil can cause the control valve mechanism to stick and malfunction." On the chance that someone lubed the valve previously, you might try a solvent instead of lubricant, but unless you know how the valve is assembled...and with what...any solvent could damage O-rings, etc. - as can oil. It seems that any repair you might achieve with oil would only be temporary....but perhaps better than nothing.
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Old 10-24-2018, 04:20 PM   #13
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P.S. Our oven knob (Suburban) is fussy. A bit of an interlocking puzzle. Once the pilot is lit, getting it to turn to a temp setting can be an exercise in patience.
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Old 10-24-2018, 04:48 PM   #14
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Does the knob have a "pilot" position? If not, it is probably intended to be lit with a match after you turn the knob on.
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Old 10-25-2018, 11:01 AM   #15
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I googled the wedgewood oven control and found 2 on ebay. Atwood Oven Control T-stat 52709. I hope this helps. It comes with a new thermocouple.
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