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The Water Cooler
General Discussion
Any appliance repair guys?
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<blockquote data-quote="tyromeo55" data-source="post: 2997106" data-attributes="member: 1719"><p>from my experience and on a sleepy brain</p><p></p><p></p><p>Older ones with standing pilots seem to of died out 10+ years ago and even then they were not common. They can be dangerous and waste gas</p><p></p><p>Hot Surface ignition is the most common today. The ignitor pulls more and more current as it gets up to temp. They are wired in series with the gas valve and when they pull a certain amount of current the valve opens. They also stay on the entire time the flame is on and pull around 4 amps. I have yet to see this type have any sort of flame sensor. they are cheaper to make but take time to come on ( more so if the HSI is old). So temps can swing quite a bit</p><p></p><p>Nicer models ( especially ones with features like convection) will have spark ignition so they can maintain heat better by lighting quicker. You'll hear the clicks when the oven cycles if you have one of these. They also have flame sensors to detect the flame ( they act a lot quicker then thermocouples).</p></blockquote><p></p>
[QUOTE="tyromeo55, post: 2997106, member: 1719"] from my experience and on a sleepy brain Older ones with standing pilots seem to of died out 10+ years ago and even then they were not common. They can be dangerous and waste gas Hot Surface ignition is the most common today. The ignitor pulls more and more current as it gets up to temp. They are wired in series with the gas valve and when they pull a certain amount of current the valve opens. They also stay on the entire time the flame is on and pull around 4 amps. I have yet to see this type have any sort of flame sensor. they are cheaper to make but take time to come on ( more so if the HSI is old). So temps can swing quite a bit Nicer models ( especially ones with features like convection) will have spark ignition so they can maintain heat better by lighting quicker. You'll hear the clicks when the oven cycles if you have one of these. They also have flame sensors to detect the flame ( they act a lot quicker then thermocouples). [/QUOTE]
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