pinkish flames on propane cooking stove

[anandi]

My Kenmore stove is less than a year old. About 1/4 of the time the flames burn a pinkish/orange color. All 4 burners and the broiler run pink at the same time. Have had the propane people check the regulator. The repair man said he's never seen this before.

[chrismart]

When you have a natural gas range hooked up to propane without doing the necesary conversions the problems will be like you have described, only not just 1/4 but all the time. The conv. changes include; pressure regulator and all the burner and pilot orfices. I'm thinking you have an intermittent regulator problem, unless they changed it out. If they just put a meter on it and said it's good, that don't really rule out an off and on problem. Is there a lot of smoke with the orange flames?

[anandi]

Dear Chrismart,
Thanks for your help. The flames do not produce smoke nor do they make pots sooty. It's not the usual orangish/yellow colored flame that you sometimes see as impurities are burned off. This is a more pinkish one that is not just at the tip of the blue but all the way through the flames. When the stove was installed, the man said he was doing the conversion. the stove burned blue perfectly for the first 9 months or so, then started to do the pinkish flames intermittently for the last 3 months or so. No bad smell or smoke.

[XSleeper]

If you've had your tank filled in the last few months, I'd blame it on the propane. Certain chemicals in the propane will give off unusual colors.

[Sharp Advice]

Hello: anandi

In your own words you said it all:
When the stove was installed, the man said he was doing the conversion. the stove burned blue perfectly for the first 9 months or so, then started to do the pinkish flames intermittently for the last 3 months or so. No bad smell or smoke.

Chances are there isn't anything wrong. The color (pinkish/orange) as you described, usually indicates invisible dust in the air burning. Same can be done by a simple light rap or tap on a grate with the burner on. Reason why it happens at times and not at other times.

As long as there is no yellow flames, odors or soot, nothing to be concerned about IMO.