fan in a lennox pulse furnace wont kick on?

check start cap on blower first that sounds like your problem

the click noise is the spark attempting to gentle the gas/blend. in case you additionally could make confident the click is going on the place the gas lights, ie no longer a short someplace so as that the spark isn't the place the gas comes out. The furnace sounds love it somewhat is making an attempt a pair of cases to gentle yet then cases out and shuts down it somewhat is nice. the different merchandise to verify it somewhat is often previous what a classic individual can do is to ascertain which you have gas going to the burner. There could be a solenoid valve someplace interior the gas line it somewhat is likewise clicking as quickly as to tutor on the gas to the burner. you're able to hit upon a place to place a tension gage to ascertain which you have gas tension whilst the valve clicks and the spark starts off to pass. This tension is in inches of water column. in case you haven't got a guage you are able to variety of make your guy or woman by utilising utilising some sparkling plastic tubing full of water and a ruler. Use the plastic tubing like a U and degree the version in top of the two water columns on the U. while you at the instant are not getting any tension you have a blockage or a foul valve. airborne dirt and dirt isn't uncommon in a gas line. someplace there could be a putting for gas tension to the burner. If the furnace is previous the regulator might have failed additionally. this promises you an outstanding start up of issues to verify.