2003 Ruud A/C upflow model UAMB024JAZ/ coil installed above furnace. Water is leaking from the back of the coil unit and down into the return air register. What could be causing the leak? Is there a...
There are only a few ways that water can be leaking out of the back of the unit and neither are very easy. Since you have said the unit was taken out and cleaned, it's hard to imagine that the coil drain pan has clogged up already, but it is possible. And since it's a newer model, I would think that it would have a plastic drain pan inside which would have to be cracked in order to leak. Either of these have to be checked by removing the flue pipe in front, which shouldn't have more than 3 screws holding it to the furnace if any, then gently trying to twist or move it until it either comes loose from the joint or able to move out of the way. Then you have to take the front cover of the coil box which is usually held on with 1/4in or 5/16in screws. Sometimes this can be really fun, just have some patients, and remove the cover. If the copper lines are in the way, you might have to cut the metal with some tin snips and tape it back up good after reinstalling it. Some installers don't think about servicing the unit when the put it all together. After removing the cover, you will be able to see the drain pan and what exactly it is doing. If the pan is full of water with the unit on, then your pan or your drain line is clogged. If your drain line is clogged, you will either need a high pressure hose to blow it out like a co2 drain tool or you will need the lines replaced. If you have no water build up inside the pan, then the pan is busted and will have to be replaced. Condensate pumps are usually only used when there is no place to place a drain line inside your utility closet and it would sit on the outside of the furnace. It's a lot, but I hope it helps!
Aug 15, 2010 |