Please help if you can... rheem citation 2... 100,000 BTU 80% the fan comes on... the draft motor runs... no gas comes out so there's no spark to light it... how do I ck the preasure switch? Can I junp the 2 wires for a second or 2 to see if the gas starts? How di I ck the omes? Thank you... richard

Does the ignitor glow? Are you getting a fault code on your control board??

does the ignitor glow? are you getting a fault code on your control board???

I have a spark inghter.. was not sparking... because there was no gas... to light
However... I just ckecked it and it came on... I fooled with the hose on the preasure switch... would you supect a preasure switch or a bad hose... if the fan and the draft motor were running... and no gas or spark? Thank you very much for your time and amswer... richard

If it is a 80% furnace then most likely yes a tube or switch problem. If it is a 905 furnace then may be a drain problem.

If it is a 80% furnace then most likely yes a tube or switch problem. If it is a 905 furnace then may be a drain problem.

... yes 80%... thank you very much... richard