My folks had a Trane gas heater installed 5 or so years ago. After a couple weeks water started to drip from one of the PCV connections coming off the exhaust. They came back to fix it but it started to leak again a year later. There is a small constant drip that Im very concerned about as it could run back down into the unit and cause problems down the road. Even if I were to replace that portion of the PVC there would still be a fair amount of condensation. I heard a plumber once tell me that he sometimes installs a nipple in the PVC with a hose that runs to the drain so the excess water escapes out the hose and not back into the unit. Has anyone heard of this issue before? I need to fix the leaking pvc but worried about all that excess water. Any help would be greatly appreciated. I will snap some pics tomorrow. Thank you all in advance!

Hi guys, Question on ignition for a gas furnace. Quick background. This natural gas furnace has been working fine for years, with occasional hiccup. Last year wouldn't stay lit after ignition, cleaned flame sensor with steel wool, and worked great. Last week I noticed that it wasn't igniting, so I took cover off and watched. Inducer fan starts off, but thermocouple or hotplate was not glowing, so I checked it with my meter and it had a hairline crack in it, plus it read open. I bought a new one, and installed it. Heater works now but I notice something different. Inducer fan kicks on, then hot plate glows red, and I hear a click, I assume solenoid on gas valve and pffffft noise, I assume gas but furnace doesn't light on first attempt, like it always has. Then hotplate goes off, inducer fan continues to run, then glowplate kicks back in to glowing red and then this time it lights off. I thought maybe the gas valve was starting to crap out so I researched it goodman b12826-14, not much I can do with it and it's pretty cheap so I bought a direct replacement, white rodgers 36G22-254. Installed it today and it makes no difference it starts on second fireup of glowplate. I checked to make sure the gas valve was getting correct voltage it shows 15.5vac in a relaxed state, but when the command is given, glow plate on, it kicks up to 25.5vac. I'm just curious why it's now taking two cycles to kick on. I will say this, once in a while it will fire off on first cycle. It never times out meaning 3 or more cycles, so I don't get any error codes. One other thing, maybe it's normal, when it first kicks on, meaning the inducer fan kicks on, I usually hear a click click click like a relay, maybe that's the inducer start relay or something. It's not coming from the inducer impellars, they free spin too, so like I said, that maybe totally unrelated and not a concern. Appreciate any thoughts on it.