Bryant plus 90i wont ignite

Is the switch on the gas valve turned on??

That part that needs replacing is on the Service companies truck and can be installed immediately.

"bumper" wrote in message news:2345c$4b1870bd$45499b77$ snipped-for-privacy@news.flashnewsgroups.com...

Can you do some basic fault isolation? If not ignore this post.

See if voltage is applied to the gas valve at the appropriate time during the ignition cycle. If not find out why such as loose connectors, bad control board, differential pressure sensor, thermal fuse, manual reset button, etc. This is not difficult if you understand the basic operation of the unit and its safety check features.

If voltage is present, check the continuity of the valve solenoid. If open, replace the valve. If not open, check gas pressure at the valve input. If none fix the no pressure problem. If present, call one of the hacks that post on this group that will sell you a new furnace and then wonder why it does not ignite.

David

Also check that the inlet and exhaust piping is not blocked somewhere. It is common for a leaves to accumulate in the input filter screen just above the fire chamber and cause the differential pressure check to fail because of no or low airflow.

David

And when, pray tell, would that be, in your most knowledgeable opinion ? You have accidently nearly stumbled on the answer, although you don't realize it....

Hey, asshole - seeing as you were under the clue train when it went through, rather than on it, - STFU.

And if you pulled your head out of your ass, you might see the sunshine.

what you have matces for and maybe your tank is full of air

what you have matches for and maybe your tank is full of air

Your head is so far up your ass, you CAN see the sunshine, cuz your head is back on top of yer shoulders. Which is why you walk so funny.