Furnace Condensate Drain Tube

A c condensate drains pumps.

Furnace condensate drain tube.

Hi i have a problem with the l galanized bracket that my plastic tubing for the ac condensation comes out of my inside furnace unit. This one covers how to clean the condensate drain of the 90 gas furnace. Additionally the inducer motor would suck air through the drain if it weren t trapped which could. If this drain is plugged the unit may not close the pressure switch.

Since the drain taps into the exhaust system leaving it open to the air would allow for a potential exhaust flue gas leak in the living space which is a big no no. The condensate trap is absolutely mandatory for a high efficiency gas furnace. Condensation from air conditioning coils contains bacteria that can form slime and clog the condensate pan drain tube. You can prevent slime and eliminate drain tube clogs in two easy steps.

When you see water puddling around the furnace with the a c running you have a clogged condensate drain tube. Codes installation leaks clogs connections troubleshooting repair. Condensate switches imc 307 2 3 states that all hvac equipment that produces condensate must have either a secondary drain line or a condensate overflow switch a secondary drain pan with a secondary drain line or condensate switch or some combination of these installations should be used to prevent overflow if the primary drain line blocks.