A yellow flame is an indication of a weak flow. Check these tips to determine if you can fix this yourself. Scale on Burner. You may find that with a yellow flame on your water heater that there is a scale that is on top of your burner. If this is the case, the best thing to do is turn off the heater and give it time to cool off.

I have a Rinnai 53 tankless water heater. When ever it starts up it makes a loud noise which goes away after it runs for a few seconds. The flame is a nice blue color. If I turn the hot water on and o … read more

If the pilot light in your gas heater shows a lot of yellow, orange, red, purple or green color, this indicates inefficient combustion because other condensates are burning along with the methane.

BLUE-FLAME VENT-FREE NATURAL GAS HEATER - Desa Parts And Desa …Example: Gas water heater 40,000 BTU/Hr Vent-free heater + 18,000 BTU/Hr Yellow flame during burner combustion Slight smoke or odor during initial opera-tion Heater produces a whistling noise when burner is lit POSSIBLE CAUSE 2.

Prevention of Yellow or Orange Flames. Most of the today's gas water heaters are equipped with the FVIR or Flammable Vapor Ignition Resistant technology and unique flame arrestor, which prevents the flame and burning vapors to escape the combustion chamber and put you and your family in danger of fire and explosion. Those water heaters that

Why Is My Water Heater Flame Orange/Yellow? One of the first signals of the improper gas combustion is the change in flame pattern, its color, shape, and height. Check the main burner, burner flame and pilot light regularly, at least once every six months, followed by dust and debris cleaning of the burner and combustion chamber.

I noticed some condensate dripping down the central chimney pipe inside the water heater. I restarted the pilot, again a nice blue. But again the burner started up with a robust yellow flame. I adjusted the thermostat setting back and forth a few times to the point of shutting off the flame if memory serves, but the yellow flame persisted.

Fresh air is usually delivered through the provisions on the wall (atmospheric type water heater), which must be made per codes and manufacturer's instructions. Testing the proper draft. A correctly formed water heater burner flame also depends on the proper draft in the draft hood, so regular check-up is recommended.

This happens because yellow flames do not burn as hot as blue flames. Because of this, the yellow flame will not adequately heat up the thermocouple, and the gas supply to the pilot light will be shut off. Another issue with a yellow-burning pilot light is that it allows carbon monoxide to leak into your home's air. That's because carbon

If your tank is gas, run some hot water and see if burner turns on. See if flame is light blue, or if it's burning yellow. If flame is yellow, the gas valve or burner might be bad. If burner does not stay ON very long, the thermostat attached to gas valve might be bad. Replace gas valve.