I have Amana 80% efficient gas furnace. I have condensation problem in b-vent pipe. I hired a pro and he found out that the furnace was short cycling. But, he did not exactly find out reasons for short cycling. So, he reduced the gas inlet pressure and it helped a bit with short cycling.
After some time, I hired another guy and he found out the problem with pressure switch which is causing the short cycling. He replaced the pressure switch and it completely eliminated the short cycling. But, I still have condensation problem.
My question is what is the impact of low gas inlet pressure? Since the first pro reduced the gas inlet pressure, my furnace is still running with low gas pressure. I forgot to ask the second pro to increase the gas pressure.
Do you think low gas inlet pressure might be responsible for condendation problem?
Please, help me.
[Edited by sanrishi on 12-05-2005 at 01:42 PM]