Question about Heating & Cooling
Water leaks from the base of the my GMPN furnace and none to little water flows through drain pipes.I check the drain pipes extend out of the furnace for any clogging . Pipes are clear.
Please help me out.
Check the drain tubes inside the furnace. There may be a loose connection or a split tube.
The unit could also leak from the gasket between the secondary heat exchanger and the vent fan housing. The secondary heat exchanger ould also be leaking or cracked.
Hope this helps.
Posted on Jan 08, 2009
Water was leaking from the base of my HVAC furnace, and not from the drain hose as it had on other occassions. I blew out the drain hose, changed filters, etc etc. Finally paid a guy $100 to come out. In 30 seconds he fixed it. So I asked questions on HVAC maintenance for another 20 minutes just to get my money's worth in education.
The fitting between the furnace and the drain hose unscrews. Whereas I had pulled the hose off of the 90 degree angled, corregated fitting that looked to be permanently attached with a cement or putty, he easily unscrewed the whole fitting. The clog was in the 90 degree angle part. Detaching and cleaning the hose and fitting are now part of my Spring self-maintenance.
An honest HVAC service would have recommended that over the phone before scheduling the repair guy. It cost me $100, it cost the company a 4 year client. Found a better HVAC guy who works independently.
Posted on Feb 17, 2011
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Posted on Jan 02, 2017
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If the exhaust comes off the top of the furnace, you will need to make sure the condensation will drain all the way back to the condensate outlet found at the base of the inducer blower. If you are having to remove the tube from the pressure switch, there must be a blockage from the inducer down to where ever it drains to. Check to see if all tubes are free of blockages and if there is a condensate trap, clean it out. If the pressure tube you mentioned is facing up toward the blower allowing water to flow into it, reposition it so water will not enter the tube.
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