If it working properly, the flame of a natural gas furnace should be bright blue with a little yellow on the tip. For propane furnaces, the flame should be blue green with a little yellow on the tip. If the furnace pilot flame is weak, it will certainly not get hot adequately to do its job, which is to heat up the thermocouple, which in turn opens the gas valve.
Furnace Flame Adjustments
One can attempt adjusting the flame oneself, however Heating Repair Baltimore would prefer property owners to give us a call. There are various safety concerns with natural gas-powered home appliances that many homeowners are not acquainted with. Likewise, please turn the gas off to the furnace before trying any adjustments or maintenance.
On the body of the pilot valve there is usually a small screw. Refer to the furnace's owners manual to assist locate it if needed. This screw will adjust the height of the flame.
Unsteady Flames
If the flame is shaky, it might be due a draft in the location of the furnace, which will certainly disrupt it running effectively.
Split Flames
If the pilot flame is divided on the tip, it is normally due to dirt deposits in the tube of the pilot light. One can clean the pilot tube with a needle or small nail, but have to see to it to do so very carefully.
Yellow Flames
A yellow colored flame might also be caused by a dirty pilot tube. It is a yellow color due to the fact that there is inadequate air which triggers the combustion procedure to be insufficient.
Read more about furnace flame adjustments in our article here: http://heatingrepairbaltimoremd.com/common-baltimore-furnace-maintenance-issues/