its in the pilot lamp.. you need to slide the orifice out of there to clean or replace every so often
A supply house such as johnstone. Take all information of the furnace and old orifice with you and show them what you need.
Defective thermocouple or possibly a dirty or clogged pilot orifice.
For a Miller Nor-dyne 62000 BTU natural gas furnace, the orifice size typically needed is 0.125 inches (or 1/8 inch). However, it's essential to verify this with the manufacturer's specifications or installation manual, as orifice sizes can vary based on specific models and gas pressures. Always consult the furnace's documentation or a qualified technician for accurate guidance.
For a 100,000 BTU four-burner furnace, the LP (liquefied propane) orifice size typically ranges from .050 to .070 inches in diameter, depending on the specific furnace design and manufacturer specifications. It's crucial to consult the manufacturer's guidelines for the exact orifice size required, as factors like elevation and specific gas pressures can affect the optimal size. Proper sizing is essential for efficient operation and safety.
The furnace pilot light may not be working due to issues such as a clogged pilot orifice, a faulty thermocouple, or a gas supply problem. It is important to troubleshoot and address these issues promptly to ensure the furnace functions properly.
Several factors can cause a furnace's pilot light to go out, such as a malfunctioning thermocouple, a dirty pilot light orifice, a draft in the area, or a gas supply issue. It is important to address the underlying cause promptly to ensure the furnace operates safely and efficiently.
Remove the pilot assembly from the furnace and clean it up. You need to be careful when putting it back on at the gas valve so as not to crossthread the screw. Take a thin wire and clean the pilot orifice, then use a brush or sandpaper on the thermocouple.
There are several possible reasons why your furnace pilot light won't stay lit. It could be due to a dirty or faulty thermocouple, a clogged pilot orifice, a draft in the area, or a malfunctioning gas valve. It is recommended to have a professional HVAC technician inspect and repair the issue to ensure safe and proper functioning of your furnace.
The pilot light on a furnace may keep going out due to issues with the thermocouple, a dirty or clogged pilot light orifice, a faulty gas valve, or insufficient gas flow. Regular maintenance and cleaning can help prevent this issue.
There are several possible reasons why your furnace pilot light won't stay lit. It could be due to a dirty or faulty thermocouple, a clogged pilot orifice, a draft in the area, or a problem with the gas supply. It's best to have a professional HVAC technician inspect and repair the issue to ensure safe and efficient operation of your furnace.
Orifices is the plural of orifice
Yellow flames from a natural gas furnace indicate that the combustion ratio is off and you have too much excess air in the mixture, if the discolored flame is isolated in the burner meaning on only 1 out of 3 or more then the burner/orifice may be out of alignment or there maybe a crack in the exchangers cell.