[donnie32]

I have a two year old high efficiency Goodman furnace that seems to have problems from time to time. The strange thing is that my son-in-law had his furnace installed about the same time and he has the same problem. We have our thermostat programmed for 62 during the night and at 6:00 am it goes to 72. That is when we both have the problem of the furnace not wanting to start. The code is three blinks. The way we fix it is to shut the power off, remove the exhaust tube, and usually water runs out of it, and then reset the power. It then will start and then we replace the exhaust tube. Never quits during the day and runs like it should. He has had the service man out twice, once he replaced a pressure switch and the next time he replaced a motor. His has quit the last two mornings, where mine has not acted up for a few weeks. I would like to think that Goodman has a good furnace but not so sure anymore. Does anyone have any idea what the problem might be?

[hvac1000]

If the exhaust tube is the one going outside then water is not supposed to accumulate in it. It is supposed to drain back. Call the contractor that installed you furnace. The instructions that came with the unit will explain. Also check and make sure your drain is open.

[therinnaiguy]

Exhaust tube? Are you physically removing the PVC pipe that goes to the outside or are you referring to a small diameter rubber hose going to the pressure switch.

I agree with HVAC1000, get your contractor back and have him install the unit the way it should have been. There should be no accumulation of water anywhere other than the condensate pump.

[donnie32]

Thank you both for your comments. Well it had been working and now this morning it failed again. Yes I have to remove the PVC pipe which is 2" diam. I found out that I failed to secure the pipe after the failure before and had water all over the floor. Again, killing the power removing the pipe and sliding it off the opening, turning power back on and it takes right off. I then put the PVC pipe back on and I tightened it down this time. You both mention that it is not installed correctly. Do you mean that the PVC pipe is placed wrong? What should happen to the water? Is there a pump in the unit that is supposed to get rid of the water? On these cold days a icicle is formed on the ground below the exhaust pipe and again I would assume that to be normal. You mention the drain, where would that be located?
Thanks again for any info. I would like to know about this before I call the installer back.
Don

[hvac1000]

Call the contractor that installed you furnace