I have a spark and gas coming through on my heater but it will not stay lit...I can light it with a lighter but again it will not stay lit...please help
The pilot assembly may be dirty (dust, lint, pet hair) or the Thermocouple has failed. The thermocouple is a safety feature that stops gas from coning out of the pilot, if the pilot suddenly goes out.
If you can disassemble the heater cabinet, you can access all of the inner workings. To clean the pilot assembly use canned compressed air with a straw nozzle (like you clean your computer with). Blow out the pilot tip and all down the pilot assembly. If you see a lot of dust inside the heater cabinet vacuum it out with a vacuum that has a hose and brush attachment. A crevice tool works well too.
After doing all of the above, reassemble the heater cabinet, and try lighting the pilot. Be sure the control knob is right in the pilot position, when you depress it to light the pilot. If it doesn't go all the way in and your don't feel strong pressure pushing back on it, it's not right in the pilot position. Turn it a hair one way and then the other, until you locate it exactly. Light the pilot as you normally would, hold the control knob in for one minute after it lights, then ease off of it slowly. In the Pilot stays lit, let it burn for a minute before turning it to the ON position. After that, you should be back in business.
If the pilot lights and fails to hold, the Thermocouple will need to be replaced.
Feb 18, 2011 |